NEET PYQ Electromagnetic Waves - Chapter-wise Questions with Solutions

About Electromagnetic Waves PYQs

Electromagnetic Waves has 232 previous year questions in the Quantrex Academy NEET UG Physics bank. The 220 questions in this list come from NEET (180), AIIMS (30), JIPMER (9) and 1 other source, spanning 2001 to 2026. Each question opens on its own page with the options, the correct answer and the worked solution where available.

NEET Electromagnetic Waves PYQs with Solutions

About Electromagnetic Waves PYQs

Questions by year (this list)

Electromagnetic Waves questions with solutions

A parallel-plate capacitor of 50\ contains a dielectric slab of constant ( k ) with the same dimensions. If a time-varying potential difference is applied at a rate of 50\ V/s .

An electromagnetic wave travelling in a lossless dielectric medium having a dielectric constant, ε_r=9 , has the electric field, E_x=E_0 (kz-2π×10^6 t) Vm ^ -1 where E_0 is the

Match List I with List II : List I (Electromagnetic wave) List II (Production) A. Microwave I. Electrons in atoms emit light when they move from a higher energy level to a lower

The following table presents the part of the electromagnetic spectrum and their corresponding major applications. Part of the electromagnetic spectrum Applications P. Microwave I.

A parallel plate capacitor made of circular plates is being charged such that the surface charge density on its plates is increasing at a constant rate with time. The magnetic

The electric field in a plane electromagnetic wave is given by E_z=60 (5 x+1.5 × 10^9 t) V / m . Then expression for the corresponding magnetic field is (here subscripts denote

A parallel plate capacitor is charged by connecting it to a battery through a resistor. If I is the current in the circuit, then in the gap between the plates:

The electromagnetic radiation which has the smallest wavelength are

The property which is not of an electromagnetic wave travelling in free space is that:

To produce an instantaneous displacement current of 2 ~mA in the space between the parallel plates of a capacitor of capacitance 4 μ F , the rate of change of applied variable

In a plane electromagnetic wave travelling in free space, the electric field component oscillates sinusoidally at a frequency of 2 . 0 × 10 ^ 10 Hz and amplitude 48V m ^ - 1 .

The magnetic field of a plane electromagnetic wave is given by B =3 × 10^ -8 (1.6 × 10^3 x+. 48 × 10^ 10 t) j , then the associated electric field will be:

When light propagates through a material medium of relative permittivity ϵ _ r and relative permeability μ _ r , the velocity of light, v is given by : ( c - velocity of light in

Match List - I with List - II: List - I (Electromagnetic waves) List - II (Wavelength) (a) AM radio waves (i) 10 ^ - 10 m (b) Microwaves (ii) 10 ^ 2 m (c) Infrared radiations

The ratio of the magnitude of the magnetic field and electric field intensity of a plane electromagnetic wave in free space of permeability μ_0 and permittivity ε_0 is (Given that

For a plane electromagnetic wave propagating in x -direction, which one of the following combinations gives the correct possible directions for the electric field ( E ) and

A capacitor of capacitance C , is connected across an ac source of voltage V , given by V = V _ 0 sin( ) . The displacement current between the plates of the capacitor would then

The wave nature of electrons was experimentally verified by,

Light with an average flux of 20W cm ^ - 2 falls on a non-reflecting surface at normal incidence having surface area 20 cm ^ 2 . The energy received by the surface during time

The ratio of contributions made by the electric field and magnetic field components to the intensity of an electromagnetic wave is: ( c = speed of electromagnetic waves)

The E.M. wave with shortest wavelength among the following is

The magnetic field in a plane electromagnetic wave is given by: B _ y = 2 × 10 ^ - 7 sin(π × 10 ^ 3 x + 3π × 10 ^ 11 t)T . Calculate the wavelength.

Potential difference is given as V(x)=-x^2 y volt. Find electric field at a point (1,2) ?

For a transparent medium relative permeability and permittivity μ_ r and ε_ r are 1.0 and 1.44 respectively. The velocity of light in this medium would be

Which colour of the light has the longest wavelength?

Assertion : The energy of X-ray photon is greater than that of light (visible) photon. Reason : X-ray photon in vacuum travels faster than light photon.

Assume that a radio station is about 200 ~km away from your location and the station operates at 972 kHz . How long does it take for an electromagnetic signal to travel from the

Assertion : When an electron beam strikes the target in an X-ray tube, part of the kinetic energy is converted into X-ray energy. Reason : If the accelerating potential in an X

The charge of a parallel plate capacitor is varying as q=q_0 2 π v t . The plates are very large and close together. Neglecting edge effects, the displacement current through the

An EM wave is propagating in a medium with a velocity → V = V ^ i . The instantaneous oscillating electric field of this em wave is along + y axis. Then the direction of

Assume that a radio station is about 200 ~km away from your location and the station operates at 972 kHz . How long does it take for an electromagnetic signal to travel from the

Assertion : When an electron beam strikes the target in an X-ray tube, part of the kinetic energy is converted into X-ray energy. Reason : If the accelerating potential in an X

The charge of a parallel plate capacitor is varying as q=q_0 2 π v t . The plates are very large and close together. Neglecting edge effects, the displacement current through the

Assertion : The energy of X-ray photon is greater than that of light (visible) photon. Reason : X-ray photon in vacuum travels faster than light photon.

A piece of blue glass heated to a high temperature and a piece of red glass at room temperature are taken inside a dimly-lit room. Then,

In an electromagnetic wave in free space the root mean square value of the electric field is E _ rms = 6V m ^ - 1 . The peak value of the magnetic field is

Assertion : When a charged particle moves in a circular path. It produces electromagnetic wave. Reason : Charged particle has acceleration.

Assertion : The electromagnetic waves are transverse in nature. Reason : Waves of wavelength 10 μ m are radiowave and microwave.

A beam of light travelling along X -axis is described by the electric field E_Y=600 V m . ω(t-(x)/(c)) , the maximum magnetic force on a charge q=2 e , moving along Y -axis with

Out of the following options which one can be used to produce a propagating electromagnetic wave?

Assertion : The electromagnetic waves are transverse in nature. Reason : Waves of wavelength 10 μ m are radiowave and microwave.

Assertion : When a charged particle moves in a circular path. It produces electromagnetic wave. Reason : Charged particle has acceleration.

The temperature of an object that emits electromagnetic radiation must be

The de-Broglie wavelength of electron falling on the target in an X-ray tube is λ . The cut-off wavelength of the emitted X-ray is

The energy of the em waves is of the order of 15keV . To which part of the spectrum does it belong?

A radiation of energy E falls normally on a perfectly reflecting surface. The momentum transferred to the surface is ( C = Velocity of light)

The temperature of an object that emits electromagnetic radiation must be

Assertion: Static crashes are heard on radio, when lightning flash occurs in the sky. Reason: Electromagnetic waves having frequency of radio wave range interfere with radio waves.

Light with an energy flux of 25 × 10 ^ 4 Wm ^ - 2 falls on a perfectly reflecting surface at normal incidence. If the surface area is 15 cm ^ 2 , the average force exerted on the

Assertion: Static crashes are heard on radio, when lightning flash occurs in the sky. Reason: Electromagnetic waves having frequency of radio wave range interfere with radio waves.

Assertion : Electromagnetic radiations exert pressure. Reason : Electromagnetic-waves carry both momentum and energy.

Astronomical wavelength increase due todoppler effect known as

Assertion : A laser beam of 0.2 ~W power can drill holes through a metal sheet, whereas a 1000 ~W torch-light cannot. Reason : The frequency of laser light is much higher than

An electromagnetic wave of frequency v=3.0 MHz passes from vacuum into a dielectric medium with relative permittivity ε=4.0 Then:

The condition under which a microwave oven heats up a food item containing water molecules most efficiently is

Astronomical wavelength increase due todoppler effect known as

Assertion : A laser beam of 0.2 ~W power can drill holes through a metal sheet, whereas a 1000 ~W torch-light cannot. Reason : The frequency of laser light is much higher than

Assertion : Electromagnetic radiations exert pressure. Reason : Electromagnetic-waves carry both momentum and energy.

The frequency order for X -rays (A), γ -rays (B) , UV rays (C) is

Assertion : In electromagnetic waves electric field and magnetic field lines are perpendicular to each other. Reason : Electric field and magnetic field are self sustaining.

The electric field associated with an electro magnetic wave in vacuum is given by E=i 40 (k z-6 × 10^8 t) , where E , z and t are in volt/m, metre and second respectively. The

The ratio of amplitude of magnetic field to the amplitude of electric field for an electromagnetic wave propagating in vacuum is equal to

The frequency order for X -rays (A), γ -rays (B) , UV rays (C) is

Assertion : In electromagnetic waves electric field and magnetic field lines are perpendicular to each other. Reason : Electric field and magnetic field are self sustaining.

The electric and the magnetic field, associated with an electromagnetic wave, propagating along the +z -axis, can be represented by

The decreasing order of wavelength of infrared, microwave, ultraviolet and gamma rays is

Assertion : Electromagnetic waves are transverse in nature Reason : The electric and magnetic fields of an e.m. wave are perpendicular to each other and also perpendicular to the

Assertion : X-ray astronomy is possible only from satellites orbiting the earth. Reason : Efficiency of X-rays telescope is large as compared to any other telescope.

Which of the following statement is false for the properties of electromagnetic waves?

The electric field of an electromagnetic wave in free space is given by E =10 (10^7 t+k x) j V / m , where t and x are in seconds and metres respectively. It can be inferred that

Assertion : Electromagnetic waves are transverse in nature Reason : The electric and magnetic fields of an e.m. wave are perpendicular to each other and also perpendicular to the

Assertion : X-ray astronomy is possible only from satellites orbiting the earth. Reason : Efficiency of X-rays telescope is large as compared to any other telescope.

Black holes in orbit around a normal star are detected from the earth due to the frictional heating of infalling gas into the black hole, which can reach temperatures greater than

If v_y, v_x and v_m are the speeds of gamma rays, X -rays and microwaves respectively in vacuum, then.

The electric field part of an electromagnetic wave in a medium is represented by aligned & E_x=0 & E_y=2.5 NC^ -1 [(2 π × 10^6 rad s^ -1 ) t-(π × 10^ -2 rad m^ -1 ) x] & E_z=0

The electric field part of an electromagnetic wave in a medium is represented by : aligned & E_ x = 0 & E_ y = 2.5 N C [( 2 π × 10^6 rad m ) t-(π × 10^ -2 rad s ) x] aligned E_z=0