Attempt all 30 MCQs and check your score instantly. 1. Electric current is defined as: Charge/time Voltage/time Energy/time Power/time 2. SI unit of current: Ampere Volt Ohm Watt 3. Ohm’s law is: V=IR P=VI E=mc² F=ma 4. Resistance unit: Ohm Volt Ampere Joule 5. Resistivity depends on: Material Length Area Shape 6. Resistance formula: ρL/A L/ρA A/ρL ρA/L 7. Current density is: I/A V/I IR P/V 8. Drift velocity is proportional to: Electric field Temperature Resistance Mass 9. Mobility is: v/E E/v I/V V/I 10. Ohmic conductor obeys: linear V-I nonlinear exponential none 11. Power formula: VI IR V/R I/V 12. Joule law: I²Rt IR V² none 13. Series resistance: add decrease multiply none 14. Parallel resistance: decrease increase same none 15. EMF is: energy/charge force current resistance 16. Internal resistance affects: current voltage only power only none 17. Terminal voltage: E – Ir E + Ir IR none 18. Kirchhoff’s law is based on: conservation laws motion gravity none 19. Wheatstone bridge condition: P/Q=R/S P+Q PQ none 20. Potentiometer measures: EMF current resistance power 21. Resistivity unit: Ωm Ohm Volt Ampere 22. Conductivity is: 1/ρ ρ R none 23. Temperature effect on metals: resistance increases decreases constant zero 24. Superconductors have: zero resistance high resistance variable resistance none 25. Electric power unit: Watt Volt Ampere Ohm 26. Energy unit: Joule Watt Volt Ampere 27. Ammeter resistance: low high infinite zero 28. Voltmeter resistance: high low zero none 29. Drift velocity increases with: electric field resistance length area 30. Ohm’s law valid for: metals semiconductors diodes none Submit NEET UG Physics Notes – Current Electricity (Set 8) Current Electricity is a high-scoring and formula-based chapter in NEET UG Physics. It is very important because it involves direct formula application, conceptual clarity, and numerical solving. This chapter also connects with practical applications like circuits, meters, and electrical devices. 1. Electric Current Electric current is the rate of flow of electric charge.I=QtI = \frac{Q}{t}I=tQ​ Key Points: 2. Ohm’s Law Ohm’s law states that current through a conductor is directly proportional to voltage.V=IRV = IRV=IR Important Insights: 3. Resistance (R) Resistance is the opposition offered to current flow.R=VIR = \frac{V}{I}R=IV​ Factors Affecting Resistance: R=ρLAR = \rho \frac{L}{A}R=ρAL​ 4. Resistivity (ρ) Definition: Property of a material that determines resistance. Key Points: 5. Conductivity (σ) σ=1ρ\sigma = \frac{1}{\rho}σ=ρ1​ Insight: 6. Current Density (J) J=IAJ = \frac{I}{A}J=AI​ Relation: J=nqvdJ = nqv_dJ=nqvd​ 7. Drift Velocity Drift velocity is the average velocity of electrons under electric field.vd∝Ev_d \propto Evd​∝E Important Concept: 8. Mobility (μ) μ=vdE\mu = \frac{v_d}{E}μ=Evd​​ Meaning: 9. Electric Power P=VIP = VIP=VI Other Forms: P=I2R=V2RP = I^2R = \frac{V^2}{R}P=I2R=RV2​ Unit: 10. Heating Effect of Current (Joule’s Law) H=I2RtH = I^2RtH=I2Rt Applications: 11. Combination of Resistances Series Combination: R=R1+R2+R3R = R_1 + R_2 + R_3R=R1​+R2​+R3​ Parallel Combination: 1R=1R1+1R2\frac{1}{R} = \frac{1}{R_1} + \frac{1}{R_2}R1​=R1​1​+R2​1​ 12. EMF and Potential Difference EMF (E): Terminal Voltage: V=E−IrV = E – IrV=E−Ir Where: 13. Internal Resistance Definition: Resistance inside a cell. Effect: 14. Kirchhoff’s Laws 1. Junction Law (Current Law): ∑I=0\sum I = 0∑I=0 2. Loop Law (Voltage Law): ∑V=0\sum V = 0∑V=0 15. Wheatstone Bridge Used to measure unknown resistance. Balanced Condition: PQ=RS\frac{P}{Q} = \frac{R}{S}QP​=SR​ Key Feature: 16. Potentiometer Uses: Advantage: 17. Temperature Effect Metals: Semiconductors: 18. Superconductors Key Property: Applications: 19. Measuring Instruments Ammeter: Voltmeter: 20. Important NEET Tips Must Remember: 21. Common Mistakes ❌ Confusing resistivity with resistance❌ Using wrong formula for series/parallel❌ Ignoring internal resistance❌ Not converting units properly Conclusion Current Electricity is one of the easiest scoring chapters in NEET if concepts are clear. Focus on: 👉 Most questions are direct and formula-based, so strong fundamentals can guarantee full marks.

Attempt all 30 MCQs below and check your score instantly with detailed explanations. 1. Coulomb’s law states force is proportional to: 1/r² r² r constant 2. SI unit of electric field is: N/C Volt Joule Watt 3. Electric field due to point charge is: kq/r² kqr² q/r r/q 4. Electric potential is: Work/charge Charge/work Force/charge Energy 5. Unit of electric potential: Volt Ampere Joule Watt 6. Work done in moving charge depends on: Path Initial point Final point Both b & c 7. Electric field inside conductor is: Zero Maximum Infinite Constant 8. Gauss law relates: Charge & flux Force & mass Energy & work Current 9. Electric flux unit is: Nm²/C Volt Ampere Joule 10. Capacitance is defined as: Q/V V/Q QV V² 11. Unit of capacitance: Farad Volt Ampere Joule 12. Energy stored in capacitor: ½CV² CV V² QV 13. Capacitance increases with: Area Distance Charge None 14. Parallel plate capacitor depends on: Area & distance Charge only Voltage Time 15. Dielectric increases capacitance by: k times decreases zero none 16. Electric dipole moment is: q×d q/d d/q q+d 17. Field of dipole varies as: 1/r³ 1/r² r constant 18. Torque on dipole is: pE sinθ pE cosθ pE zero 19. Potential due to dipole varies as: 1/r² 1/r³ r constant 20. Electric lines of force: never cross cross circular none 21. Field at center of charged ring: zero max infinite constant 22. Equipotential surface: constant V varying V zero infinite 23. Potential energy of charge: qV V/q q/V none 24. Relation between E and V: E = -dV/dr V = Ed E = V none 25. Work done in closed path: zero max infinite constant 26. Electric field direction: + to – – to + random none 27. Capacitance in series: decreases increases same zero 28. Capacitance in parallel: increases decreases zero same 29. Breakdown occurs due to: high voltage low voltage zero voltage none 30. Permittivity unit: F/m N Volt Joule Submit NEET UG Physics Notes – Electrostatics (Set 7) Electrostatics is a high-weightage and concept-driven topic in NEET UG Physics. It forms the foundation for later topics like current electricity, capacitance, and electromagnetism. The questions in this set cover Coulomb’s law, electric field, potential, capacitance, Gauss law, and dipole concepts. 1. Coulomb’s Law Coulomb’s law describes the force between two point charges.F=kq1q2r2F = k \frac{q_1 q_2}{r^2}F=kr2q1​q2​​ Key Points: 2. Electric Field (E) Electric field is the force experienced per unit charge.E=FqE = \frac{F}{q}E=qF​ For a point charge:E=kqr2E = k \frac{q}{r^2}E=kr2q​ Important Concepts: 3. Electric Potential (V) Electric potential is the work done per unit charge.V=WqV = \frac{W}{q}V=qW​ For a point charge:V=kqrV = k \frac{q}{r}V=krq​ Key Insights: 4. Relation Between Electric Field and Potential E=−dVdrE = -\frac{dV}{dr}E=−drdV​ Meaning: 5. Electric Flux and Gauss’s Law Electric Flux: Φ=EAcos⁡θ\Phi = EA \cos\thetaΦ=EAcosθ Gauss Law: Φ=qencε0\Phi = \frac{q_{enc}}{\varepsilon_0}Φ=ε0​qenc​​ Applications: 6. Electric Field Lines Properties: 7. Equipotential Surfaces Surfaces where potential is constant. Important Facts: 8. Electric Dipole A system of two equal and opposite charges separated by distance. Dipole Moment: p=q×dp = q \times dp=q×d Electric Field: Torque on Dipole: τ=pEsin⁡θ\tau = pE \sin\thetaτ=pEsinθ 9. Capacitance Capacitance is ability to store charge.C=QVC = \frac{Q}{V}C=VQ​ Parallel Plate Capacitor: C=ε0AdC = \frac{\varepsilon_0 A}{d}C=dε0​A​ Where: 10. Effect of Dielectric If dielectric is inserted:C=kε0AdC = k \frac{\varepsilon_0 A}{d}C=kdε0​A​ Key Points: 11. Energy Stored in Capacitor U=12CV2U = \frac{1}{2}CV^2U=21​CV2 Other Forms: U=Q22C=12QVU = \frac{Q^2}{2C} = \frac{1}{2}QVU=2CQ2​=21​QV 12. Combination of Capacitors Series: 1C=1C1+1C2\frac{1}{C} = \frac{1}{C_1} + \frac{1}{C_2}C1​=C1​1​+C2​1​ Parallel: C=C1+C2C = C_1 + C_2C=C1​+C2​ 13. Potential Energy U=qVU = qVU=qV Important Insight: 14. Work Done in Electric Field W=q(V1−V2)W = q(V_1 – V_2)W=q(V1​−V2​) 15. Breakdown of Dielectric When electric field exceeds limit: 16. Permittivity ε0\varepsilon_0ε0​ Unit: F/mF/mF/m Role: 17. Important Exam Tips Must Remember: 18. Common Mistakes to Avoid ❌ Confusing electric field with potential❌ Ignoring negative sign in E=−dV/drE = -dV/drE=−dV/dr❌ Mixing up series and parallel capacitor formulas❌ Forgetting units Conclusion Electrostatics is formula-driven but concept-heavy. Most NEET questions are: If you master: 👉 You can easily score full marks in this chapter.

NEET UG Physics Practice Paper – Part 6 (Modern Physics) Submit NEET UG Physics Notes – Modern Physics (Part 6) Modern Physics is one of the most scoring and conceptually rich sections for NEET UG. The questions in this quiz primarily revolve around photoelectric effect, atomic models, nuclear physics, and radiation phenomena. Understanding the core principles behind these topics is essential for solving both theoretical and numerical questions efficiently. 1. Photoelectric Effect The photoelectric effect explains the emission of electrons from a metal surface when light of sufficient frequency falls on it. This phenomenon strongly supports the particle nature of light. Key Concepts: Important Observations: 2. Photon Theory of Light According to Planck’s quantum theory: This explains phenomena like: 3. Dual Nature of Matter Louis de Broglie proposed that matter also behaves like waves. De Broglie Wavelength: λ=hp=hmv\lambda = \frac{h}{p} = \frac{h}{mv}λ=ph​=mvh​ Experimental Proof: Implication: 4. Bohr’s Atomic Model Bohr proposed a model for hydrogen atom explaining discrete energy levels. Key Postulates: Bohr Radius: rn∝n2r_n \propto n^2rn​∝n2 Spectral Lines: 5. Atomic Spectra When electrons transition between energy levels, photons are emitted or absorbed. Types of Spectra: Reason: Energy difference between levels:ΔE=hf\Delta E = hfΔE=hf 6. Nuclear Structure The nucleus consists of protons and neutrons (nucleons). Nuclear Radius: R=R0A1/3R = R_0 A^{1/3}R=R0​A1/3 Where: 7. Mass Defect and Binding Energy Mass Defect: Difference between actual mass of nucleus and sum of individual nucleon masses. Binding Energy: Energy required to break nucleus into individual nucleons.E=Δm c2E = \Delta m \, c^2E=Δmc2 Importance: 8. Radioactive Decay Radioactive substances decay spontaneously. Decay Law: N=N0e−λtN = N_0 e^{-\lambda t}N=N0​e−λt Where: Half-Life: T1/2=0.693λT_{1/2} = \frac{0.693}{\lambda}T1/2​=λ0.693​ Activity: A=λNA = \lambda NA=λN 9. Types of Radioactive Decay Alpha Decay (α): Beta Decay (β): Gamma Decay (γ): 10. Nuclear Reactions Nuclear Fission: Nuclear Fusion: 11. Energy Production in the Sun The Sun produces energy through nuclear fusion, primarily:4H→He+energy4H \rightarrow He + energy4H→He+energy Key Points: 12. Rutherford’s Atomic Model Rutherford’s gold foil experiment concluded: 13. Fundamental Particles Electron: Proton: Neutron: 14. Mass-Energy Equivalence Einstein’s famous relation:E=mc2E = mc^2E=mc2 Implication: 15. Important Exam Insights Frequently Tested Concepts: Common Mistakes: Conclusion Modern Physics is a high-yield, formula-based, and concept-driven topic for NEET UG. Most questions are direct applications of formulas or conceptual understanding rather than lengthy calculations. By mastering: you can easily secure full marks in this section. Focus on understanding why phenomena occur, not just memorizing formulas. This will help you tackle tricky conceptual questions with confidence.

NEET UG – Physics Practice Paper – Thermodynamics (Part 5) Total Questions: 30 | +4 Marks for Correct Answer | No Negative Marking 1. SI unit of temperature is: Kelvin Celsius Fahrenheit Joule 2. Absolute zero temperature is: 0 K -273°C Both None 3. Heat flows from: High to low temperature Low to high Both None 4. SI unit of heat is: Joule Calorie Watt Kelvin 5. Specific heat capacity unit is: J/kg·K J/K J/kg K 6. First law of thermodynamics is: Q = ΔU + W Q = W – ΔU Q = ΔU Q = W 7. Internal energy depends on: Temperature Volume Pressure None 8. Work done in isothermal process is: Non-zero Zero Infinite Constant 9. In isochoric process: Volume constant Pressure constant Temperature constant None 10. In isobaric process: Pressure constant Volume constant Temperature constant None 11. Efficiency of heat engine is: W/Q₁ Q₁/W Q₂/W None 12. Carnot engine efficiency depends on: Temperature Pressure Volume None 13. Ideal gas equation: PV = nRT PV = RT P = nRT V = nRT 14. SI unit of pressure: Pascal Joule Watt Newton 15. Heat capacity is: Q/ΔT ΔT/Q Q×T None 16. Second law of thermodynamics states: Heat cannot flow from cold to hot without work Energy conserved Work done is zero None 17. Entropy unit: J/K J K W 18. Adiabatic process means: No heat exchange Heat exchange Temperature constant Pressure constant 19. Work done in isochoric process: Zero Maximum Minimum Infinite 20. Work done in isobaric process: PΔV VΔP PV None 21. Ideal gas molecules have: No interaction Strong interaction Weak interaction None 22. RMS speed depends on: Temperature Pressure Volume None 23. Temperature is measure of: Average kinetic energy Potential energy Pressure Volume 24. Heat engine converts: Heat to work Work to heat Heat to temperature None 25. Refrigerator works on: Reverse heat engine Heat engine Generator None 26. COP of refrigerator is: Q₂/W W/Q₁ Q₁/W None 27. Boyle’s law states: P ∝ 1/V V ∝ T P ∝ T None 28. Charles law: V ∝ T P ∝ T P ∝ V None 29. Avogadro law: V ∝ n P ∝ n T ∝ n None 30. SI unit of gas constant R is: J/mol·K J/K J/mol K/mol Submit Answers Detailed Notes for NEET UG Physics Practice Paper (Thermodynamics – Part 5) Thermodynamics is one of the most concept-driven and scoring sections in NEET Physics. The questions in this practice paper focus on building a strong foundation in thermal physics, including temperature, heat transfer, laws of thermodynamics, gas laws, and heat engines. Understanding these concepts deeply is essential because thermodynamics is not just about formulas—it is about interpreting physical processes and energy transformations. Temperature and Its Measurement Temperature is a fundamental concept in thermodynamics and is measured in Kelvin (K) in the SI system. The Kelvin scale is an absolute scale, meaning it starts from absolute zero, the lowest possible temperature. Absolute zero is: At this temperature, the molecular motion is minimum. In NEET, students must understand the relationship between Celsius and Kelvin:T(K)=T(∘C)+273T(K) = T(^\circ C) + 273T(K)=T(∘C)+273 This conversion is frequently used in numerical problems. Heat and Heat Transfer Heat is a form of energy transfer that occurs due to a temperature difference. Its SI unit is Joule (J). A key principle tested in the quiz is: There are three modes of heat transfer: Although not directly asked in basic MCQs, these concepts are important for conceptual clarity. Specific Heat Capacity Specific heat capacity is defined as the amount of heat required to raise the temperature of 1 kg of a substance by 1 Kelvin.c=QmΔTc = \frac{Q}{m\Delta T}c=mΔTQ​ Its unit is:J/kg⋅KJ/kg·KJ/kg⋅K This concept is important in problems involving heat exchange and calorimetry. First Law of Thermodynamics The first law is a statement of energy conservation:Q=ΔU+WQ = \Delta U + WQ=ΔU+W Where: This law connects heat, work, and internal energy, forming the backbone of thermodynamics. Internal Energy Internal energy refers to the total energy contained within a system due to molecular motion and interactions. For an ideal gas, internal energy depends only on temperature, not on pressure or volume. This concept is crucial because it simplifies many thermodynamic calculations. Thermodynamic Processes The quiz includes questions on different thermodynamic processes, each with unique characteristics: 1. Isothermal Process (Temperature Constant) 2. Isochoric Process (Volume Constant) 3. Isobaric Process (Pressure Constant) 4. Adiabatic Process Understanding these processes is essential for solving NEET problems involving PV diagrams and heat calculations. Second Law of Thermodynamics The second law introduces the concept of direction of processes. One common statement is: This law explains why certain processes are irreversible and introduces the concept of entropy. Entropy Entropy is a measure of disorder or randomness in a system. Its unit is:J/KJ/KJ/K In natural processes, entropy tends to increase. This concept is important for understanding the efficiency of heat engines and the direction of thermodynamic processes. Heat Engines and Efficiency A heat engine converts heat energy into mechanical work. The efficiency of a heat engine is given by:η=WQ1\eta = \frac{W}{Q_1}η=Q1​W​ Where: Efficiency is always less than 100% due to energy losses. Carnot Engine The Carnot engine is an ideal heat engine with maximum efficiency. Its efficiency depends only on the temperatures of the hot and cold reservoirs:η=1−T2T1\eta = 1 – \frac{T_2}{T_1}η=1−T1​T2​​ This shows that efficiency increases with a greater temperature difference. Refrigerators and Coefficient of Performance (COP) A refrigerator works as a reverse heat engine, transferring heat from a cold region to a hot region. The coefficient of performance (COP) is:COP=Q2WCOP = \frac{Q_2}{W}COP=WQ2​​ Where: Understanding COP is important for practical applications. Ideal Gas Equation The ideal gas equation is one of the most important equations in thermodynamics:PV=nRTPV = nRTPV=nRT Where: This equation combines all gas laws into a single relation. Gas Laws The quiz includes three fundamental gas laws: Boyle’s Law P∝1VP \propto \frac{1}{V}P∝V1​ (At constant temperature) Charles’s Law V∝TV \propto TV∝T (At constant pressure) Avogadro’s Law V∝nV \propto nV∝n These laws are frequently used in NEET numerical problems. Kinetic Theory of

Total Questions: 30 | +4 Marks for Correct Answer | No Negative Marking 1. The unit of force is: Newton Joule Watt Pascal 2. Newton’s Second Law is: F = ma F = mv F = m/v F = ma² 3. Momentum is: mv m/v v/m mv² 4. Unit of work is: Joule Newton Watt Volt 5. Work done is zero when angle is: 90° 0° 180° 45° 6. Kinetic energy formula: ½mv² mv mgh m²v 7. Potential energy formula: mgh mv² mv m²g 8. Power is: Work/time Work×time Time/work Work² 9. Unit of power: Watt Joule Newton Volt 10. Acceleration unit: m/s² m/s m²/s m²/s² 11. Velocity is: Vector Scalar Constant None 12. Speed is: Scalar Vector Both None 13. Work = Fd cosθ Fd F/d F²d 14. Momentum unit: kg·m/s kg·m²/s N J 15. Impulse = Ft F/t t/F F²t 16. Work-energy theorem: W = change in KE W = KE W = PE W = Force 17. Force unit: Newton Joule Watt Volt 18. Time unit: Second Minute Hour Day 19. Distance unit: Meter Joule Watt Newton 20. Acceleration = change in velocity/time velocity/time distance/time none 21. Velocity = displacement/time distance/time acceleration/time none 22. Speed = distance/time displacement/time acceleration/time none 23. SI unit of mass: kg gram tonne pound 24. SI unit of length: meter cm km inch 25. SI unit of time: second minute hour day 26. Acceleration due to gravity is: 9.8 m/s² 10 m/s 8 m/s² 9.8 m/s 27. Unit of energy: Joule Watt Newton Volt 28. Power depends on: Work & time Work only Time only None 29. Work depends on: Force, distance, angle Force only Distance only None 30. Energy is: Capacity to do work Force Power Velocity Submit Answers Detailed Notes for NEET UG Physics Practice Paper (Mechanics – Part 4) The fourth part of this NEET Physics practice series focuses entirely on Mechanics, which is one of the most important and high-weightage topics in the NEET syllabus. Mechanics forms the foundation of Physics and plays a critical role not only in direct questions but also in solving problems from other chapters like waves, thermodynamics, and modern physics. A strong grasp of mechanics ensures that students can tackle a wide variety of questions with confidence and accuracy. Fundamental Physical Quantities and Units The quiz begins by reinforcing the understanding of basic physical quantities and their SI units, such as force (Newton), work (Joule), power (Watt), distance (meter), time (second), and mass (kilogram). These are the building blocks of physics. Understanding units is crucial because: For example, force is measured in Newton and is defined as:F=maF = maF=ma This immediately connects the unit of force with mass and acceleration. Newton’s Laws of Motion Newton’s laws are central to mechanics and are directly tested in this quiz. The second law is especially important because it provides a quantitative relationship between force, mass, and acceleration. Many NEET problems are based on this fundamental equation. Momentum and Impulse Momentum is defined as:p=mvp = mvp=mv It depends on both mass and velocity, making it a vector quantity. The unit of momentum is kg⋅m/skg·m/skg⋅m/s. Impulse is defined as:Impulse=F×tImpulse = F \times tImpulse=F×t It represents the change in momentum. Understanding impulse is important for collision problems, which are frequently asked in NEET. Work and Energy Concepts The concept of work is introduced through the formula:W=Fdcos⁡θW = Fd \cos\thetaW=Fdcosθ This shows that work depends on: A key concept tested in the quiz is that work is zero when the angle is 90°, because cos⁡90°=0\cos 90° = 0cos90°=0. Energy is defined as the capacity to do work, and its SI unit is Joule. There are two main types of energy covered: Students must understand that kinetic energy depends on the square of velocity, while potential energy depends on height. Work-Energy Theorem One of the most important principles in mechanics is the work-energy theorem, which states:W=ΔKEW = \Delta KEW=ΔKE This means that the work done on an object results in a change in its kinetic energy. This concept is widely used in solving NEET problems involving motion. Power and Its Applications Power is defined as the rate of doing work:P=WtP = \frac{W}{t}P=tW​ Its SI unit is Watt. Power depends on both the amount of work done and the time taken to do it. Understanding power is important for questions involving machines, engines, and energy transfer. Kinematics: Motion and Its Description Basic kinematics concepts are reinforced in this quiz through formulas like: Students must clearly understand the difference between: This distinction is frequently tested in NEET. Scalars vs Vectors The quiz emphasizes the difference between scalar and vector quantities. Understanding this difference is essential because vector quantities require direction as well as magnitude, which affects how they are calculated. Gravitational Concepts The value of acceleration due to gravity (g≈9.8m/s2g ≈ 9.8 m/s^2g≈9.8m/s2) is an important constant that students must remember. This concept is used in: Students should also understand that gravity acts downward and affects all objects equally regardless of mass (in ideal conditions). Importance of Formula Clarity Mechanics relies heavily on formulas, and students must be comfortable using them correctly. Important formulas include: However, simply memorizing formulas is not enough. Students must understand the conditions under which each formula applies. Concept Integration One of the key benefits of this quiz is that it integrates multiple concepts. For example: This reflects the actual NEET exam pattern, where questions are often multi-conceptual. Common Mistakes to Avoid Students should be careful about: Avoiding these mistakes can significantly improve performance. Exam Strategy for Mechanics To score well in mechanics, students should: Mechanics questions are often straightforward but require quick thinking and accuracy. Learning Outcomes from This Quiz By practicing this set, students will: These outcomes are essential for achieving a high score in NEET Physics. Final Conclusion Mechanics is the backbone of Physics, and mastering it is essential for success in NEET. This practice paper reinforces the idea that strong fundamentals lead to better problem-solving skills. The concepts covered—force, motion, work, energy, power, and

Total Questions: 30 | +4 Marks for Correct Answer | No Negative Marking 1. The SI unit of angular displacement is: radian degree meter second 2. Dimensional formula of energy is: \(MLT^{-1}\) \(ML^2T^{-2}\) \(ML^2T^{-1}\) \(MT^{-2}\) 3. If acceleration is zero, velocity is: Constant Zero Increasing Decreasing 4. Work done is maximum when angle between force and displacement is: 0° 90° 180° 45° 5. Unit of linear momentum is: kg·m/s kg·m²/s kg·m/s² Joule 6. SI unit of pressure is: Pascal Newton Joule Watt 7. Acceleration due to gravity decreases with: Height Mass Time Velocity 8. Escape velocity depends on: Mass of planet Radius of planet Both None 9. Potential energy formula is: mgh mv² mgh² mg²h 10. Electric current is flow of: Electrons Protons Neutrons Atoms 11. Unit of electric potential: Volt Ampere Ohm Coulomb 12. Resistance increases with: Length Area Temperature decrease None 13. Magnetic field lines are: Closed loops Straight Parallel Random 14. Frequency unit is: Hertz Second Meter Joule 15. Wave speed formula: fλ f/λ λ/f f²λ 16. Heat flows from: High to low temperature Low to high Both None 17. Unit of temperature: Kelvin Joule Watt Pascal 18. Surface tension unit: N/m N J W 19. Viscosity depends on: Temperature Pressure Volume None 20. Unit of power: Watt Joule Newton Volt 21. Work done unit: Joule Watt Newton Volt 22. Force unit: Newton Joule Watt Pascal 23. Acceleration unit: m/s² m/s m²/s m²/s² 24. Speed = Distance/time Time/distance Distance×time None 25. Density unit: kg/m³ kg/m m³/kg kg 26. Electric charge unit: Coulomb Volt Ampere Watt 27. Power = Work/time Work×time Time/work Work² 28. Momentum depends on: Mass & velocity Mass only Velocity only None 29. Kinetic energy depends on: Velocity² Velocity Mass² None 30. Potential energy depends on: Height Velocity Time None Submit Answers Detailed Notes for NEET UG Physics Practice Paper (Misc – Part 3) The third part of this NEET Physics practice series focuses on reinforcing core fundamental concepts that form the base of almost every advanced topic in the syllabus. While these questions may appear straightforward, they are extremely important for NEET aspirants because the exam often includes direct conceptual questions that test clarity rather than complexity. Mastering these basics ensures not only accuracy but also speed, which is critical in a competitive exam like NEET. Importance of Units and Basic Definitions Many questions in this quiz revolve around SI units and basic physical quantities, such as angular displacement (radian), force (Newton), work (Joule), and pressure (Pascal). These are not just theoretical definitions—they are essential tools for solving numerical problems. For example: Students must clearly understand how these units are derived. For instance, pressure is defined as force per unit area, which explains why its unit is Pascal (N/m²). Questions based on units are often easy scoring opportunities if students have strong conceptual clarity. Dimensional Analysis and Its Role The quiz includes dimensional formula questions such as the dimension of energy (ML2T−2ML^2T^{-2}ML2T−2). Dimensional analysis is a powerful tool that helps students: In NEET, dimensional analysis is frequently tested directly or indirectly. For example, knowing that energy and work have the same dimensions helps students quickly identify correct answers. Mechanics: The Foundation of Physics A significant portion of this quiz is based on mechanics, which is one of the most important sections in NEET Physics. Key concepts include: Understanding that zero acceleration implies constant velocity is crucial. Similarly, the relationship between force, mass, and acceleration (Newton’s Second Law) is fundamental to solving many problems. Work, Energy, and Power This quiz strongly emphasizes work-energy concepts, which are highly important for NEET preparation. Students must understand that: For example, work is maximum when the angle between force and displacement is 0°, because cos⁡0°=1\cos 0° = 1cos0°=1. Momentum and Its Applications Momentum is another key concept tested in this quiz. It is defined as:p=mvp = mvp=mv This shows that momentum depends on both mass and velocity. In NEET, questions often test how momentum changes when either mass or velocity changes. Students should also understand the relationship between momentum and force, as impulse (Force × time) equals the change in momentum. Gravitation and Its Effects Questions related to gravity emphasize important ideas such as: These concepts are frequently tested in NEET and often require both conceptual understanding and formula application. Electricity and Current The quiz also includes basic questions on electricity, which is a high-weightage topic in NEET. Important concepts include: Understanding these basics is essential before moving on to more complex topics like circuits and electromagnetism. Magnetism and Field Concepts Magnetic field concepts are introduced through questions about magnetic field lines and their properties. Key points: These concepts are important for understanding advanced topics like electromagnetic induction. Waves and Oscillations Wave-related questions focus on simple but important relationships: These formulas are frequently used in NEET and form the basis for more advanced wave problems. Thermal Physics Concepts Basic thermal physics is also covered in this quiz. Important ideas: Students must understand that temperature is a measure of molecular kinetic energy. Properties of Matter Concepts such as viscosity, surface tension, and density are included to test understanding of material properties. These topics are often tested in NEET through conceptual or formula-based questions. Speed, Motion, and Kinematics Basic kinematics is reinforced through questions like: These simple formulas are the foundation of motion-related problems. Concept Integration One of the most important aspects of this quiz is that it combines multiple topics into a single practice set. This reflects the actual NEET exam pattern, where questions are not arranged chapter-wise. For example: Practicing mixed questions helps students develop the ability to quickly switch between concepts. Common Mistakes Students Make Based on these questions, students should be careful to avoid: Even small mistakes can lead to loss of marks in NEET, so attention to detail is crucial. Strategy for NEET Preparation This quiz highlights the importance of: Students should aim to solve such quizzes regularly and analyze their mistakes. Learning Outcomes from This Quiz By practicing this set, students will: These outcomes