Match List I (Wavelength range of electromagnetic spectrum) with List II (Method of production of these waves) and select the correct option from the options given below the lists. List I List II (a) 700 nm to 1 mm (i) Vibration of atoms and molecules. (b) 1 nm to 400 nm (ii) Inner shell electrons in atoms moving from one energy level to a lower level. (c) < 10 - 3 nm (iii) Radioactive decay of the nucleus. (d) 1 mm to 0 . 1 m (iv) Magnetron valve.

(a) - (i), (b) - (ii), (c) - (iii), (d) - (iv)

(a) - (iii), (b) - (iv), (c) - (i), (d) - (ii)

(a) - (iv), (b) - (iii), (c) - (ii), (d) - (i)

(a) - (ii), (b) - (iii), (c) - (iv), (d) - (i)

Given below are two statements : Statement I : Electromagnetic waves are not deflected by electric and magnetic field. Statement II : The amplitude of electric field and the magnetic field in electromagnetic waves are related to each other as E 0 = μ 0 ε 0 B 0 . In the light of the above statements, choose the correct answer from the options given below:

Statement I is true but statement II is false

Both Statement I and Statement II are true

Statement I is false but statement II is true

Both Statement I and Statement II are false

MEDIUM

JEE Main

IMPORTANT

Earn 100

For plane electromagnetic waves propagating in the $+ z$ -direction, which one of the following combinations gives the correct possible direction for $\vec{E}$ and $\vec{B}$ field respectively?

33.33% studentsanswered this correctly

Important Questions on Electromagnetic Waves

HARD

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 17 - Electromagnetic Waves>JEE Main - 9th April 2014>Q 51

Match List I (Wavelength range of electromagnetic spectrum) with List II (Method of production of these waves) and select the correct option from the options given below the lists.

	List I		List II
(a)	$700 nm$ to $1 mm$	(i)	Vibration of atoms and molecules.
(b)	$1 nm$ to $400 nm$	(ii)	Inner shell electrons in atoms moving from one energy level to a lower level.
(c)	$< 10^{- 3} nm$	(iii)	Radioactive decay of the nucleus.
(d)	$1 mm$ to $0.1 m$	(iv)	Magnetron valve.

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 17 - Electromagnetic Waves>JEE Main - 6th April 2014>Q 52

During the propagation of electromagnetic wave in a particular medium :-

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 17 - Electromagnetic Waves>JEE Main - 7th April 2013>Q 53

The magnetic field in a travelling electromagnetic wave has a peak value of

20 nT

. The peak value of electric field strength is :

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 17 - Electromagnetic Waves>JEE Main - 9th January 2019 Shift 1>Q 54

A plane electromagnetic wave of frequency

50 M H z

travels in free space along the positive

x

- direction. At a particular point in space and time,

\vec{E} = 6.3 \hat{j} V / m,

The corresponding magnetic field

\vec{B}

, at that point will be:

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 17 - Electromagnetic Waves>JEE Main - 3rd April 2016>Q 55

Arrange the following electromagnetic radiations per quantum in the order of increasing energy:

A :

Blue light

B :

Yellow light

C :

X-ray

D :

Radiowave

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 17 - Electromagnetic Waves>JEE Main - 19th April 2014>Q 56

If microwaves,

X ‐

rays, infrared, gamma rays, ultraviolet, radio waves and visible parts of the electromagnetic spectrum are denoted respectively by

M

X

I

G

U

R

and

V

the following is the arrangement in ascending order of the wavelength

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 17 - Electromagnetic Waves>JEE Main - 6th April 2014>Q 57

Match List - I (Electromagnetic wave type) with List - II (Its association/application) and select the correct option from the choices given below the lists :

	List - I		List - II
(a)	Infrared waves	(i)	To treat muscular strain
(b)	Radio waves	(ii)	For broadcasting
(c)	X - rays	(iii)	To detect fracture of bones
(d)	Ultraviolet rays	(iv)	Absorbed by the ozone layer of the atmosphere

HARD

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 17 - Electromagnetic Waves>JEE Main - 24 June 2022 Shift 1>Q 58

A plane electromagnetic wave travels in a medium of relative permeability $1.61$ and relative permittivity $6.44$ . If magnitude of magnetic intensity is $4.5 \times 10^{- 2} A m^{- 1}$ at a point, what will be the approximate magnitude of electric field intensity at that point ?

(Given : Permeability of free space $μ_{0} = 4 π \times 10^{- 7} N A^{- 2}$ , speed of light in vacuum $c = 3 \times 10^{8} {m s}^{- 1}$ )

For plane electromagnetic waves propagating in the +z-direction, which one of the following combinations gives the correct possible direction for E→ and B→ field respectively?

Important Questions on Electromagnetic Waves

Learn and Prepare for any exam you want !

For plane electromagnetic waves propagating in the $+ z$ -direction, which one of the following combinations gives the correct possible direction for $\vec{E}$ and $\vec{B}$ field respectively?