NEET UG 2020 · Physics · 45 questions

NEET 2020 Physics, question by question

The NEET 2020 Physics section had 45 questions from 24 chapters: 36 easy, 9 medium and 0 hard. 80% were easy, 33 points above the 2017–2026 average for Physics, and 28 (62%) came from Class 12. Current Electricity had the most, 5 questions.

Updated 2026-10-08

Questions: 45; 25% of the paper
Chapters asked: 24; 2 usual chapters skipped
Easy: 80%; 2017–2026 average 47%
From Class 12: 62%; 2017–2026 average 56%

The section

What Physics asked in 2020

Class balance, difficulty and the form of the questions. Bars below compare Physics across every paper from 2017–2026.

Class 11 and 12

1728

Class 11
Class 12

Difficulty

369

Easy
Medium
Hard

New ideas: 35 (78%)
Use a figure: 4

Question pattern

PHYSICS 2020

Calculation58%
Recall22%
Figure-based9%
Concept7%
Application4%

Chapters

The 2020 Physics chapter split

All 24 Physics chapters asked, and which got more or less than usual: the chapter’s ten-year average per 180 questions.

Every chapter asked

Current Electricity5 · usually 3.2
Dual Nature of Radiation and Matter3 · usually 1.9
Electrostatic Potential and Capacitance3 · usually 2.2
Kinetic Theory3 · usually 1.4
Semiconductor Electronics: Materials, Devices and Simple Circuits3 · usually 2.6
Units and Measurements3 · usually 1.9
Wave Optics3 · usually 1.5
Alternating Current2 · usually 1.4
Electromagnetic Waves2 · usually 1.7
Nuclei2 · usually 1.2
System of Particles and Rotational Motion2 · usually 2.4
Atoms1 · usually 1.3
Electric Charges and Fields1 · usually 1.4
Gravitation1 · usually 1.8
Laws of Motion1 · usually 1.9
Magnetism and Matter1 · usually 0.8
Mechanical Properties of Fluids1 · usually 1.4
Mechanical Properties of Solids1 · usually 0.7
Motion in a Straight Line1 · usually 1.2
Moving Charges and Magnetism1 · usually 2.1
Oscillations1 · usually 1.6
Ray Optics and Optical Instruments1 · usually 2.5
Thermal Properties of Matter1 · usually 1.0
Waves1 · usually 0.9

Not asked this year: Work, Energy and Power, Electromagnetic Induction.

More than usual

Current Electricity+1.85 questions · usually 3.2
Kinetic Theory+1.63 questions · usually 1.4
Wave Optics+1.53 questions · usually 1.5
Units and Measurements+1.13 questions · usually 1.9
Dual Nature of Radiation and Matter+1.13 questions · usually 1.9
Electrostatic Potential and Capacitance+0.83 questions · usually 2.2
Nuclei+0.82 questions · usually 1.2
Alternating Current+0.62 questions · usually 1.4

Less than usual, or skipped

Work, Energy and Power−1.5Not asked · usually 1.5
Ray Optics and Optical Instruments−1.51 question · usually 2.5
Electromagnetic Induction−1.3Not asked · usually 1.3
Moving Charges and Magnetism−1.11 question · usually 2.1
Laws of Motion−0.91 question · usually 1.9
Gravitation−0.81 question · usually 1.8
Oscillations−0.61 question · usually 1.6
Mechanical Properties of Fluids−0.41 question · usually 1.4

Every question

All 45 Physics questions of NEET 2020

Open any question for the full text, the options and the official answer. “New idea” means no earlier paper had tested it.

Subject

Difficulty

Idea

Find

45 of 45 questions

Physics45 questions

36 easy9 medium0 hard

Q136
For which one of the following, Bohr model is not valid ?
Atoms Bohr's Atomic Model Valid Hydrogen-like Species
EasyOne-line MCQNew idea
Q137
The ratio of contributions made by the electric field and magnetic field components to the intensity of an electromagnetic wave is : (c =…
Electromagnetic Waves Energy Density of EM Waves
EasyOne-line MCQNew ideaIdea asked in 2 papers
Q138
The Brewsters angle $i_b$ for an interface should be :
Wave Optics Single Slit Diffraction Polarisation and Malus's Law
MediumOne-line MCQIdea asked in 5 papers
Q139
A cylinder contains hydrogen gas at pressure of 249 kPa and temperature 27°C. Its density is : (R = 8.3 J mol $^{-1}$ K $^{-1}$ )
Kinetic Theory Kinetic Theory of Gases Ideal Gas Equation
EasyNumericalNew ideaIdea asked in 5 papers
Q140
A ray is incident at an angle of incidence $i$ on one surface of a small angle prism (with angle of prism A) and emerges normally from the…
Ray Optics and Optical Instruments Prisms, Dispersion and Optical Instruments Thin Prisms and Dispersion
MediumNumericalIdea asked in 2 papers
Q141
Two cylinders A and B of equal capacity are connected to each other via a stop cock. A contains an ideal gas at standard temperature and…
Thermodynamics Laws of Thermodynamics First Law in Free Expansion
EasyOne-line MCQNew idea
Q142
The energy equivalent of 0.5 g of a substance is :
Nuclei Nuclear Binding Energy Energy Equivalent of One Gram
EasyNumericalNew idea
Q143
A body weighs 72 N on the surface of the earth. What is the gravitational force on it, at a height equal to half the radius of the earth ?
Gravitation Variation of g and Force with Height
EasyNumericalIdea asked in 3 papers
Q144
The solids which have the negative temperature coefficient of resistance are :
Current Electricity Ohm's Law and Resistance Negative Temperature Coefficient
EasyOne-line MCQNew ideaIdea asked in 2 papers
Q145
The phase difference between displacement and acceleration of a particle in a simple harmonic motion is :
Oscillations Simple Harmonic Motion Phase Relationships in SHM Graphs
EasyOne-line MCQNew idea
Q146
A screw gauge has least count of 0.01 mm and there are 50 divisions in its circular scale. The pitch of the screw gauge is :
Units and Measurements Units and Dimensions Screw Gauge Pitch and Least Count
EasyNumericalNew idea
Q147
In a guitar, two strings A and B made of same material are slightly out of tune and produce beats of frequency 6 Hz. When tension in B is…
Waves Standing Waves, Organ Pipes and Beats Beats and String Tension
MediumNumericalNew idea
Q148
Two particles of mass 5 kg and 10 kg respectively are attached to the two ends of a rigid rod of length 1 m with negligible mass. The…
System of Particles and Rotational Motion Center of Mass COM Distance in Two-Body Systems
EasyNumericalNew ideaIdea asked in 2 papers
Q149
Find the torque about the origin when a force of $3\hat{j}$ N acts on a particle whose position vector is $2\hat{k}$ m.
System of Particles and Rotational Motion Rotational Motion Torque as a Cross Product
EasyNumericalIdea asked in 2 papers
Q150
Light with an average flux of 20 W/cm $^2$ falls on a non-reflecting surface at normal incidence having surface area 20 cm $^2$ . The energy…
Electromagnetic Waves Intensity and Energy Transport
EasyNumericalNew idea
Q151
A spherical conductor of radius 10 cm has a charge of $3.2\times10^{-7}$ C distributed uniformly. What is the magnitude of electric field…
Electric Charges and Fields Gauss's Law Field of a Solid Conducting Sphere
EasyNumericalNew idea
Q152
In a certain region of space with volume 0.2 m $^3$ , the electric potential is found to be 5 V throughout. The magnitude of electric field…
Electrostatic Potential and Capacitance Electrostatic Potential Relation between E and V
EasyOne-line MCQNew idea
Q153
The increase in the width of the depletion region in a p-n junction diode is due to :
Semiconductor Electronics: Materials, Devices and Simple Circuits Semiconductor Devices p-n Junction: Depletion Region and Biasing
EasyOne-line MCQIdea asked in 4 papers
Q154
A 40 $\mu$ F capacitor is connected to a 200 V, 50 Hz ac supply. The rms value of the current in the circuit is, nearly :
Alternating Current LCR Circuits Capacitive Reactance Calculation
EasyNumericalNew ideaIdea asked in 2 papers
Q155
The mean free path for a gas, with molecular diameter d and number density n can be expressed as :
Kinetic Theory Kinetic Theory of Gases Mean Free Path
MediumOne-line MCQNew ideaIdea asked in 2 papers
Q156
For transistor action, which of the following statements is correct ?
Semiconductor Electronics: Materials, Devices and Simple Circuits Semiconductor Devices Bipolar Junction Transistor
EasyOne-line MCQIdea asked in 3 papers
Q157
Light of frequency 1.5 times the threshold frequency is incident on a photosensitive material. What will be the photoelectric current if…
Dual Nature of Radiation and Matter Photoelectric Effect Threshold Wavelength Condition
EasyOne-line MCQNew ideaIdea asked in 2 papers
Q158
When a uranium isotope $^{235}_{92}\mathrm{U}$ is bombarded with a neutron, it generates $^{89}_{36}\mathrm{Kr}$ , three neutrons and :
Nuclei Nuclear Binding Energy Balancing Nuclear Equations
EasyNumericalNew idea
Q159
The energy required to break one bond in DNA is $10^{-20}$ J. This value in eV is nearly :
Dual Nature of Radiation and Matter Photoelectric Effect eV to Joule Conversion in Photoelectric Equations
EasyNumericalNew idea
Q160
Two bodies of mass 4 kg and 6 kg are tied to the ends of a massless string. The string passes over a pulley which is frictionless (see…
Laws of Motion Newton's Laws of Motion Standard Atwood Machine
EasyFigure-basedNew idea
Q161
A wire of length L, area of cross section A is hanging from a fixed support. The length of the wire changes to $L_1$ when mass M is…
Mechanical Properties of Solids Elasticity Young's Modulus Calculation
EasyOne-line MCQIdea asked in 2 papers
Q162
The average thermal energy for a mono-atomic gas is : ( $k_B$ is Boltzmann constant and T, absolute temperature)
Kinetic Theory Kinetic Theory of Gases Molecular Kinetic Energy and Temperature
EasyOne-line MCQIdea asked in 2 papersAsked the year before
Q163
Which of the following graph represents the variation of resistivity ( $\rho$ ) with temperature (T) for copper ?
Current Electricity Ohm's Law and Resistance Resistivity vs Temperature Graphs
EasyFigure-basedNew idea
Q164
The color code of a resistance is given below : [figure: resistor with bands Yellow, Violet, Brown, Gold] The values of resistance and…
Current Electricity Ohm's Law and Resistance Carbon Resistor Color Coding
EasyFigure-basedIdea asked in 3 papers
Q165
In Young's double slit experiment, if the separation between coherent sources is halved and the distance of the screen from the coherent…
Wave Optics Young's Double Slit Proportionality of Fringe Width to D and d
EasyOne-line MCQNew idea
Q166
The capacitance of a parallel plate capacitor with air as medium is 6 $\mu$ F. With the introduction of a dielectric medium, the…
Electrostatic Potential and Capacitance Capacitance Parallel Plate Capacitor Formula
EasyNumericalNew ideaIdea asked in 2 papers
Q167
Dimensions of stress are :
Units and Measurements Units and Dimensions Dimensions of Pressure and Energy Density
EasyOne-line MCQNew idea
Q168
Assume that light of wavelength 600 nm is coming from a star. The limit of resolution of telescope whose objective has a diameter of 2 m…
Wave Optics Single Slit Diffraction Angular Radius of Airy Disk
MediumNumericalNew idea
Q169
A series LCR circuit is connected to an ac voltage source. When L is removed from the circuit, the phase difference between current and…
Alternating Current LCR Circuits Unity Power Factor at Resonance
MediumNumericalNew idea
Q170
A short electric dipole has a dipole moment of $16\times10^{-9}$ C m. The electric potential due to the dipole at a point at a distance of…
Electrostatic Potential and Capacitance Electrostatic Potential Potential of an Electric Dipole
EasyNumericalNew ideaIdea asked in 2 papers
Q171
An iron rod of susceptibility 599 is subjected to a magnetising field of 1200 A m $^{-1}$ . The permeability of the material of the rod is :…
Magnetism and Matter Susceptibility and Permeability
EasyNumericalNew idea
Q172
A long solenoid of 50 cm length having 100 turns carries a current of 2.5 A. The magnetic field at the centre of the solenoid is : (…
Moving Charges and Magnetism Ampere's Circuital Law Magnetic Field of Solenoid
EasyNumericalNew ideaIdea asked in 2 papers
Q173
A charged particle having drift velocity of $7.5\times10^{-4}$ m s $^{-1}$ in an electric field of $3\times10^{-10}$ V m $^{-1}$ , has a…
Current Electricity Ohm's Law and Resistance Charge Carrier Mobility
EasyNumericalNew idea
Q174
The quantities of heat required to raise the temperature of two solid copper spheres of radii $r_1$ and $r_2$ ( $r_1 = 1.5\,r_2$ ) through 1…
Thermal Properties of Matter Calorimetry Thermal Capacity (Heat Capacity)
MediumNumericalNew idea
Q175
An electron is accelerated from rest through a potential difference of V volt. If the de Broglie wavelength of the electron is…
Dual Nature of Radiation and Matter Photoelectric Effect de Broglie Wavelength of Accelerated Electrons
MediumNumericalNew idea
Q176
Taking into account of the significant figures, what is the value of 9.99 m $-$ 0.0099 m ?
Units and Measurements Units and Dimensions Significant Figures in Addition and Subtraction
EasyNumericalNew idea
Q177
A ball is thrown vertically downward with a velocity of 20 m/s from the top of a tower. It hits the ground after some time with a velocity…
Motion in a Straight Line Kinematics in 1D Downward Projection Sign Convention
EasyNumericalNew idea
Q178
A capillary tube of radius r is immersed in water and water rises in it to a height h. The mass of the water in the capillary is 5 g.…
Mechanical Properties of Fluids Surface Tension Mass of Liquid in a Capillary Tube
EasyNumericalNew idea
Q179
A resistance wire connected in the left gap of a metre bridge balances a 10 $\Omega$ resistance in the right gap at a point which divides…
Current Electricity Kirchhoff's Rules Metre Bridge Application
MediumNumericalNew idea
Q180
For the logic circuit shown, the truth table is :
Semiconductor Electronics: Materials, Devices and Simple Circuits Logic Gates Combined Circuit Truth Tables
EasyFigure-basedIdea asked in 5 papers

Questions from the official NEET UG 2020 paper (NTA). Chapter, topic and idea tags and difficulty are Lumi’s.

Physics in every NEET paper

NEET 2020 Chemistry NEET 2020 Biology The whole 2020 paper Physics across ten years