Quantrex Academy Quantrex AcademyPYQs with solutions · JEE · NEET · NDA

Home · NEET PYQs · Physics · Chapter

NEET Chapter PYQs with Solutions

367 previous year questions from Chapter (NEET UG Physics) with answers and solutions. Numbered list, year tags, and one-tap solutions — built for serious JEE / NEET practice.

367 questionsPhysics2004–2026Answers + solutions

About Chapter PYQs

Chapter has 367 previous year questions in the Quantrex Academy NEET UG Physics bank. The 220 questions in this list come from NEET (220), spanning 2004 to 2026. Each question opens on its own page with the options, the correct answer and the worked solution where available.

Questions by year (this list)

  • 2026: 215
  • 2020: 1
  • 2019: 1
  • 2018: 1
  • 2013: 1
  • 2004: 1

Chapter questions with solutions

1

A solid spherical body of radius R , density ρ , and specific heat capacity s is initially at temperature T_0 . It is placed in a vacuum chamber at absolute zero and cools by

NEET 2026 Solution View → 2

A straight canal has motorboats departing from two terminals at opposite ends. The motorboats depart at regular intervals of T minutes in both directions and travel at a constant

NEET 2026 Solution View → 3

A wooden crate is released from rest at the top of a ramp inclined at 37^ ∘ to the horizontal. When the ramp is perfectly smooth, the crate reaches the bottom with a speed v .

NEET 2026 Solution View → 4

A uniform horizontal beam of mass 6 kg and length L is hinged to a vertical wall at one end. The other end is supported by a light inextensible wire attached to the same wall

NEET 2026 Solution View → 5

A bullet P of mass 30 g moving with a speed of 200 m/s penetrates a target and comes to rest after travelling a distance of 10 cm inside it. Another bullet Q of mass 20 g moving

NEET 2026 Solution View → 6

A small block of mass m is placed at the highest point of a smooth fixed sphere of radius R . It is given a horizontal initial speed v_1 such that it slides down the surface. The

NEET 2026 Solution View → 7

A block of mass 2 kg is projected with an initial speed of 14 m/s on a rough horizontal surface. The coefficient of kinetic friction between the block and the surface is 0.2 .

NEET 2026 Solution View → 8

A uniform horizontal circular disc of mass M and radius R is rotating freely about a vertical axis passing through its center at an angular speed of 40 rpm . Two small blocks

NEET 2026 Solution View → 9

A space probe is studying a newly discovered spherical planet of radius R . The probe measures the gravitational acceleration at a height of (R)/(2) above the planet's surface to

NEET 2026 Solution View → 10

Consider a narrow capillary tube dipped vertically into a large container of liquid with density ρ and surface tension S . The liquid rises in the tube to a height h above the

NEET 2026 Solution View → 11

Three composite rectangular slabs A, B, and C of equal thickness and equal cross-sectional area are joined end-to-end in series. Their thermal conductivities are 3K , 2K , and K

NEET 2026 Solution View → 12

Two rigid, thermally insulated tanks A and B are connected by a narrow tube fitted with a closed valve. Tank A has a volume of 5 L and contains an ideal gas at a pressure of 300

NEET 2026 Solution View → 13

An ideal gas is enclosed in a cylinder fitted with a frictionless, movable piston of area 0.04 m^2 . The gas is heated by an electrical coil of resistance 50 \ Ω carrying a

NEET 2026 Solution View → 14

A rigid storage tank of volume 0.0831 ~m^ 3 contains 1.4 ~kg of Nitrogen gas ( N_ 2 ) at a temperature of 300 ~K . A valve is accidentally left open, and some gas escapes. When

NEET 2026 Solution View → 15

A block of mass 4 kg is executing simple harmonic motion on a smooth horizontal surface with an amplitude A and frequency ν , under the restoring force of an ideal spring. When

NEET 2026 Solution View → 16

Two blocks, X and Y , are executing simple harmonic motion on smooth horizontal surfaces. Block X has mass M and is attached to a spring of force constant K . Block Y has mass 2M

NEET 2026 Solution View → 17

Two identical small conducting spheres P and Q carry charges of +8 and -2 respectively. When placed at a certain distance r apart in vacuum, the magnitude of the attractive

NEET 2026 Solution View → 18

An electric dipole of moment 6.0 × 10^ -8 C m is placed in a uniform electric field of magnitude 5.0 × 10^4 N/C . Initially, the dipole is held at an angle of 120^ ∘ with respect

NEET 2026 Solution View → 19

A parallel plate capacitor has a capacitance C_0 when there is air between its plates, which are separated by a distance d . Two dielectric slabs are inserted between the plates

NEET 2026 Solution View → 20

A uniform wire of resistance R is cut into 6 equal segments. Three of these segments are connected in series to form a combination X . The remaining three segments are connected

NEET 2026 Solution View → 21

Four resistors are connected to form a quadrilateral ABCD such that the resistance of arm AB is 10 Ω , arm BC is 20 Ω , arm CD is 60 Ω , and arm AD is 30 Ω . A 50 Ω resistor is

NEET 2026 Solution View → 22

In the given circuit, a 20 V ideal battery is connected across the terminals P and S. An ideal ammeter is connected between nodes Q and R. Determine the reading of the ammeter.

NEET 2026 Solution View → 23

A beam of positively charged particles is moving with a velocity of 4 × 10^5 ~m~s^ -1 along the positive x-axis. It enters a region containing a uniform electric field of 8 × 10^4

NEET 2026 Solution View → 24

Two square loops, P and Q , carry currents in the ratio 3 : 2 . If the side lengths of the loops are in the ratio 1 : 3 , what is the ratio of the magnetic dipole moment of loop P

NEET 2026 Solution View → 25

A proton and an alpha particle, initially at rest, are accelerated through the same potential difference. They then enter a region of uniform magnetic field perpendicular to their

NEET 2026 Solution View → 26

The figure shows a branch of an electrical circuit. At a given instant, the current I flowing from Q to P is 3 A and it is decreasing at a rate of 4 A/s . If point Q is connected

NEET 2026 Solution View → 27

An alternating voltage of 240 V (rms) is applied across a series combination of a 12 \,Ω resistor, an inductor of reactance 30 \,Ω , and a capacitor of reactance 14 \,Ω . What is

NEET 2026 Solution View → 28

A researcher is adjusting a compound microscope to view a bacterial sample. The microscope has an objective lens of focal length 1.5 cm and an eyepiece of focal length 5.0 cm . If

NEET 2026 Solution View → 29

An optical system is constructed by placing three thin lenses coaxially in contact. The focal lengths of the three lenses are f , (f)/(2) , and -f , respectively. If the lateral

NEET 2026 Solution View → 30

A beam of unpolarised light with intensity I_0 falls on a system of three polaroids P_1 , P_2 , and P_3 arranged in series. The transmission axes of P_1 and P_3 are perpendicular

NEET 2026 Solution View → 31

A hypothetical atom consists of a particle of mass m moving in a circular orbit around a central stationary nucleus. The potential energy of the particle in this field is given by

NEET 2026 Solution View → 32

An unpolarized beam of light travelling in a transparent dense medium of refractive index 3 is incident on its interface with air at Brewster's angle. Which of the following

NEET 2026 Solution View → 33

What is the ratio of the de Broglie wavelength of an electron revolving in the third orbit of a singly ionized helium atom ( He^+ ) to that of an electron revolving in the second

NEET 2026 Solution View → 34

Two ideal diodes D_1 and D_2 are connected in two parallel branches between nodes A and B as shown in the figure. An alternating voltage source V(t) = 200 (50π t) volts is applied

NEET 2026 Solution View → 35

A student uses a Vernier callipers to measure the length of a metal cylinder. The main scale is graduated in millimeters ( 1 M.S.D. = 1 mm ), and 20 Vernier scale divisions

NEET 2026 Solution View → 36

A neutron of mass m and a photon have the same de Broglie wavelength λ . What is the ratio of the energy of the photon to the kinetic energy of the neutron? (Here c is the speed

NEET 2026 Solution View → 37

Which of the following truth tables correctly represents the final output Y of the given logic circuit?

NEET 2026 Solution View → 38

Identify the pair of physical quantities that possesses the same dimensional formula as that of energy density.

NEET 2026 Solution View → 39

A small block is moving on a frictionless horizontal circular track with a steady speed. During its motion, the block possesses:

NEET 2026 Solution View → 40

A car is moving with a constant speed v on a flat circular track of radius R . The centripetal force required to keep the car in the circular path is F . If the car's speed is

NEET 2026 Solution View → 41

Two small carts of masses 8 kg and 12 kg are connected by a light inextensible string and placed on a smooth horizontal track as shown in the figure. A constant horizontal force

NEET 2026 Solution View → 42

A constant force F = (4 i + 2 j ) N acts on a particle. The position vector of the particle as a function of time t is given by r = (t^ 3 i - 2t^ 2 j ) m . The instantaneous power

NEET 2026 Solution View → 43

A particle of mass 2m moving with speed v collides completely inelastically with another particle of mass 3m moving in the opposite direction with speed (v)/(2) . If the magnitude

NEET 2026 Solution View → 44

A uniform solid cylinder is rolling without slipping on a horizontal surface. As shown in the figure, point A is at the highest position, point B is at the center of the cylinder

NEET 2026 Solution View → 45

A uniform wooden stick is pivoted at one of its ends about a vertical axis perpendicular to its length, allowing it to rotate freely in a horizontal plane. If the mass of the

NEET 2026 Solution View → 46

A newly discovered spherical planet has a mass 48 times that of the Earth and a volume 64 times that of the Earth. If a block has a weight W on the surface of the Earth, what will

NEET 2026 Solution View → 47

An aluminium rod is designed such that it can undergo a maximum elongation of 5 mm before permanent deformation sets in. If the elastic limit and Young's modulus of aluminium are

NEET 2026 Solution View → 48

A thin circular ring of radius 3.5 cm is resting horizontally on the surface of a liquid. If the surface tension of the liquid is 0.05 N m^ -1 , the excess upward force required

NEET 2026 Solution View → 49

The displacement of a body undergoing simple harmonic motion is given by the equation y = 12 (4π t - (π)/(4)) cm . The amplitude and time period of the oscillation are respectively

NEET 2026 Solution View → 50

A storage battery of emf 10 V and internal resistance 2\ Ω is being charged by a 30 V DC supply using a series resistor of 3\ Ω as shown in the given figure. The terminal voltage

NEET 2026 Solution View → 51

A uniform wire of resistance 180 Ω is cut into six equal segments. Three of these segments are connected in parallel to form a bundle, while the remaining three segments are

NEET 2026 Solution View → 52

A thin uniform bar magnet of mass 30 g and length 10 cm is suspended by a light thread at its centre in a uniform horizontal magnetic field of 0.2 T as shown. It is given a small

NEET 2026 Solution View → 53

A conducting wire is bent into a circular arc of radius 2 cm and subtends an angle of 60^∘ at its centre. If a steady current of 12 A is passed through the wire, what is the

NEET 2026 Solution View → 54

A long, straight horizontal wire carries a steady current I from left to right as shown in the figure. Two circular conducting loops, P and Q, are placed in the same plane as the

NEET 2026 Solution View → 55

In a Young's double slit setup, the slits are illuminated by a white light source. Which colour of light will form the first-order bright fringe closest to the central white

NEET 2026 Solution View → 56

In a vernier callipers, 1 cm on the main scale is divided into M equal parts. It is observed that P divisions of the vernier scale coincide exactly with (P-2) divisions of the

NEET 2026 Solution View → 57

The given figure shows the variation of de Broglie wavelength ( λ ) versus 1 V for two different particles accelerated from rest, where V is the accelerating potential. If the two

NEET 2026 Solution View → 58

The potential energy U of a system as a function of distance x is given by the expression U = (A)/(x) + B x^2 , where A and B are constants. Which of the following expressions

NEET 2026 Solution View → 59

The velocity ( v ) versus time ( t ) graph of a particle moving in a straight line is shown in the figure. The graph consists of three distinct continuous segments: a parabolic

NEET 2026 Solution View → 60

An electric kettle has two independent heating coils. When connected individually to a 220 V supply, the first coil boils a certain mass of water in 10 minutes , while the second

NEET 2026 Solution View → 61

A payload of mass m is resting on the surface of a spherical airless planet of mass M and radius R . The minimum work required to lift this payload and establish it in a stable

NEET 2026 Solution View → 62

A structural steel cable of length 5 m and cross-sectional area 4 × 10^ -4 m^2 is rigidly clamped at both ends between two massive pillars. The cable is initially at a temperature

NEET 2026 Solution View → 63

The given figure shows the volume ( V ) versus absolute temperature ( T ) graphs for equal masses of three different ideal gases A, B, and C, measured at the same constant

NEET 2026 Solution View → 64

A parallel plate capacitor is fully charged using a battery. The battery is then disconnected, and a dielectric slab is completely inserted between the plates. Which of the

NEET 2026 Solution View → 65

In the given circuit, the galvanometer G shows zero deflection. The resistance in arm AB is 8\,Ω , the resistance in arm BC is 12\,Ω , and the resistance in arm CD is 24\,Ω . The

NEET 2026 Solution View → 66

A small block is placed on a frictionless horizontal track that passes near the poles of a powerful electromagnet, where the magnetic field is non-uniform. A. The block will

NEET 2026 Solution View → 67

A uniform straight magnetized wire has a magnetic moment M . If it is bent into an arc of a circle such that it subtends an angle of 90^ ∘ at the centre of the circle, what will

NEET 2026 Solution View → 68

An ideal inductor of inductance L = (2)/(π) H is connected to an AC source as shown in the figure. If the RMS voltage of the source is 220 V and its frequency is 50 Hz , the peak

NEET 2026 Solution View → 69

A steady conduction current I is used to charge a parallel plate capacitor having a plate area A . Which of the following gives the correct expression for the rate of change of

NEET 2026 Solution View → 70

An astronomical telescope is set in normal adjustment for viewing a distant object. The magnifying power of the telescope is 14 and the distance between the objective lens and the

NEET 2026 Solution View → 71

In a laboratory experiment, the centripetal force acting on a body moving in a circular path is to be determined. The mass of the body is measured as (50.0 ± 0.5) g , its speed as

NEET 2026 Solution View → 72

During a medical examination, a thermometer placed under the armpit of a patient consistently records a temperature slightly lower than the actual core body temperature. According

NEET 2026 Solution View → 73

The positions of two particles, A and B, moving along a straight line (x-axis) are given by the equations x_A = 4t^2 + 2t - 5 and x_B = 4t^2 + 2t + 3 , where x is in meters and t

NEET 2026 Solution View → 74

A train travels the first one-third of the total distance between two stations at a constant speed of 30 km/h . It covers the remaining two-thirds of the distance at a constant

NEET 2026 Solution View → 75

A golf ball is struck by a club such that it leaves the ground with an initial velocity of 40 m s^ -1 at an angle of 60^ ∘ with the horizontal. Considering air resistance to be

NEET 2026 Solution View → 76

The work done in stretching a linear spring by 4 cm from its natural length is 10 J . The additional work required to stretch it further by another 8 cm will be:

NEET 2026 Solution View → 77

A uniform thin rod of length L and a uniform solid sphere of radius R have the same mass. If the radius of gyration of the rod about an axis passing through its center and

NEET 2026 Solution View → 78

Two heavy spheres of masses 2M and 8M are fixed at a distance L apart. What is the gravitational potential at a point on the line joining their centers where the net gravitational

NEET 2026 Solution View → 79

A uniform cylindrical rod of cross-sectional area S is placed on a frictionless horizontal surface. Two equal and opposite forces, each of magnitude F , are applied outwardly

NEET 2026 Solution View → 80

A rectangular soap film is formed on a wire frame. The work done in increasing the size of the film from 10 cm × 5 cm to 10 cm × 8 cm is: (Surface tension of the soap solution is

NEET 2026 Solution View → 81

At the narrowest section (throat) of a horizontal Venturi-meter, an ideal fluid in steady flow experiences:

NEET 2026 Solution View → 82

A closed container holds a sample of an ideal gas at 127^ ∘ C . To what temperature must the gas be heated so that the root mean square (rms) speed of its molecules increases by

NEET 2026 Solution View → 83

An open organ pipe produces a fundamental frequency of 300 Hz . If one of its ends is tightly closed, what will be the new fundamental frequency of the pipe?

NEET 2026 Solution View → 84

A closed Gaussian surface contains no net charge, while some point charges are situated outside it. Which of the following is a correct deduction regarding the electric field E

NEET 2026 Solution View → 85

A student constructs a circuit using three capacitors as shown in the given figure. What will be the effective capacitance between the terminals X and Y?

NEET 2026 Solution View → 86

In the given circuit, two batteries of EMFs 20\ V and 8\ V with internal resistances 2\ Ω and 1\ Ω respectively are connected as shown. What is the potential difference across the

NEET 2026 Solution View → 87

A closed cylindrical surface of radius R and length L is placed in a uniform magnetic field B . The axis of the cylinder is aligned parallel to the direction of the magnetic

NEET 2026 Solution View → 88

A choke coil has a self-inductance of 20 mH . If the magnetic potential energy stored in the coil is 90 mJ , what is the steady current passing through it?

NEET 2026 Solution View → 89

An ideal step-down transformer is used to operate a low-voltage AC motor. The motor is connected to the secondary coil and draws a steady current of 5 A at 24 V . If the current

NEET 2026 Solution View → 90

An alternating voltage source is connected across a series combination of a 0.5 H inductor, a 2 μ F capacitor, and a 50 Ω resistor. At what frequency of the AC source will the

NEET 2026 Solution View → 91

An electric bulb and a capacitor are connected in series across an AC source of constant rms voltage but variable frequency. If the frequency of the AC source is increased, how

NEET 2026 Solution View → 92

A radio wave emitted by a communication satellite propagates in free space with a wavelength of 300 m . If the peak magnetic field of the electromagnetic wave is 1.5 × 10^ -8 T

NEET 2026 Solution View → 93

A monochromatic light beam travels through two different transparent media, A and B. It is observed that a distance y in medium A contains n_A waves of this light, while a

NEET 2026 Solution View → 94

Given below are two statements related to Young's double slit experiment: Statement I: If the separation between the two slits is doubled, the angular width of the interference

NEET 2026 Solution View → 95

If the series limit of the Lyman series for the hydrogen emission spectrum is λ , then the wavelength of the first line of the Balmer series is:

NEET 2026 Solution View → 96

Ultraviolet light of wavelength 310 nm is directed at three different metal plates P, Q, and R. The work functions of these metals are 2.2 eV , 3.5 eV , and 4.8 eV respectively.

NEET 2026 Solution View → 97

A monochromatic point source of light operates at a power of 60 W and emits light of wavelength 663 nm . Assuming 100\% efficiency in converting electrical power into light, what

NEET 2026 Solution View → 98

A motorboat is moving in a straight line on a lake with an initial velocity v . When its engine is shut off, it experiences a uniform deceleration due to water resistance. After

NEET 2026 Solution View → 99

A drone is ascending vertically at a constant speed of 5 m s^ -1 . When it is at a certain height above the ground, a small package gets detached from it. If the package takes 6 s

NEET 2026 Solution View → 100

A suitcase is placed on a horizontal conveyor belt. The coefficient of static friction between the suitcase and the belt is 0.3 . If the belt starts from rest and accelerates

NEET 2026 Solution View → 101

Two isolated spherical planets, X and Y , have uniform mass densities in the ratio 4 : 9 . A satellite orbits very close to the surface of planet X with a time period T_X .

NEET 2026 Solution View → 102

Two point charges +4q and -3q are placed at points A and B respectively, as shown in the figure. Assuming the variables q and K represent purely numerical values in standard SI

NEET 2026 Solution View → 103

A nichrome heating element has a resistance of 100\ Ω at room temperature ( 20^ ). When it is connected to a 220\ V supply, a steady current of 2.0\ A flows through it. If the

NEET 2026 Solution View → 104

Twelve identical cells, each of emf E and internal resistance r , are connected in series. The free ends of this combination are then short-circuited to form a closed loop. By

NEET 2026 Solution View → 105

A straight wire of length L carries a steady current I along the negative y-axis. When placed in a uniform magnetic field B , the wire experiences a magnetic force F = IL(3 i + 4

NEET 2026 Solution View → 106

If the radius of the second Bohr orbit of a singly ionized helium atom ( He^+ ) is x , then the radius of the third Bohr orbit of a doubly ionized lithium atom ( Li^ 2+ ) will be:

NEET 2026 Solution View → 107

A particle starts from rest at the origin and moves along the x -axis. Its acceleration varies with time t as a = 12t + 6 (where a is in m/s^2 and t is in seconds). The ratio of

NEET 2026 Solution View → 108

A car can safely negotiate a flat circular turn at a maximum speed of 90 km/h on a dry road. Due to an oil spill, the coefficient of static friction between the tires and the road

NEET 2026 Solution View → 109

A block of mass 5 kg rests on a smooth horizontal surface. It is pulled by a light string that makes an angle of 37^ ∘ above the horizontal with a constant force of 50 N .

NEET 2026 Solution View → 110

A particle is moving in the x - y plane with an initial kinetic energy of 20 J . A constant force F = (3 i + 4 j ) N acts on the particle as it moves from the coordinates (1 m, 2

NEET 2026 Solution View → 111

A small block is released from rest from a height of 20 m on a frictionless curved track. At the lowest point, it passes through a short rough horizontal patch where it loses 40\%

NEET 2026 Solution View → 112

A thin rectangular metallic plate of dimensions 15 cm × 20 cm is given a total charge of 12 μ C . Assuming uniform charge distribution, the magnitude of surface charge density on

NEET 2026 Solution View → 113

A parallel plate capacitor stores 40 mJ of electrostatic energy when connected across a 200 V DC supply. The capacitance of the capacitor is

NEET 2026 Solution View → 114

A parallel plate capacitor acquires a charge of 40\ when connected across a 20\ V battery. If the same capacitor is instead connected across a 60\ V battery, its capacitance will

NEET 2026 Solution View → 115

Two cylindrical wires, A and B, are made of the same conducting material. The radius of wire A is twice the radius of wire B. If wire A carries a current that is three times the

NEET 2026 Solution View → 116

In a laboratory experiment to verify Ohm's law, a student measures the potential difference across a nichrome wire as V = (90 ± 1.8) V and the current passing through it as I =

NEET 2026 Solution View → 117

A cylindrical metallic wire of initial resistance 5 Ω is drawn so that its length becomes three times its original length. This elongated wire is then folded to form a closed

NEET 2026 Solution View → 118

When a sample of an unknown material is placed in a non-uniform magnetic field, it is observed to experience a net force driving it from the stronger to the weaker part of the

NEET 2026 Solution View → 119

A circular coil having magnetic moment μ is placed in a uniform magnetic field B . If the coil is in a state of unstable equilibrium, what is its magnetic potential energy?

NEET 2026 Solution View → 120

Two air-cored solenoids, P and Q , are constructed using insulated copper wire. Solenoid P has a total of N turns, a radius of 2r , and a length L . Solenoid Q has a total of 3N

NEET 2026 Solution View →
Practice all Chapter questions in the app →

Main Chapter list

The larger NEET Chapter list is under Biology (733 questions).

Related NEET Physics chapters

Current Electricity (563)Electrostatics (505)Ray Optics (497)Magnetic Effects of Current (445)Semiconductors (404)Dual Nature of Matter (377)Alternating Current (366)Motion in One Dimension (352)Oscillations (350)Waves and Sound (350)Nuclear Physics (341)Gravitation (335)