JEE Main 2023 (Online) 29th January Evening Shift | Electromagnetic Waves Question 38 | Physics

1

JEE Main 2023 (Online) 29th January Evening Shift

MCQ (Single Correct Answer)

+4

-1

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 $${E_0} = \sqrt {{{{\mu _0}} \over {{\varepsilon _0}}}} {B_0}$$.

In the light of the above statements, choose the correct answer from the options given below :

A

Both Statement I and Statement II are true

B

Statement I is true and Statement II is false

C

Both Statement I and Statement II are false

D

Statement I is false but Statement II is true

2

JEE Main 2023 (Online) 29th January Morning Shift

MCQ (Single Correct Answer)

+4

-1

Which of the following are true?

A. Speed of light in vacuum is dependent on the direction of propagation.

B. Speed of light in a medium is independent of the wavelength of light.

C. The speed of light is independent of the motion of the source.

D. The speed of light in a medium is independent of intensity.

Choose the correct answer from the options given below:

A

B and D only

B

B and C only

C

A and C only

D

C and D only

3

JEE Main 2023 (Online) 25th January Evening Shift

MCQ (Single Correct Answer)

+4

-1

Match List I with List II

	List I		List II
A.	Gauss's Law in Electrostatics	I.	$$\oint {\overrightarrow E \,.\,d\overrightarrow l = - {{d{\phi _B}} \over {dt}}} $$
B.	Faraday's Law	II.	$$\oint {\overrightarrow B \,.\,d\overrightarrow A = 0} $$
C.	Gauss's Law in Magnetism	III.	$$\oint {\overrightarrow B \,.\,d\overrightarrow l = {\mu _0}{i_c} + {\mu _0}{ \in _0}{{d{\phi _E}} \over {dt}}} $$
D.	Ampere-Maxwell Law	IV.	$$\oint {\overrightarrow E \,.\,d\overrightarrow s = {q \over {{ \in _0}}}} $$

Choose the correct answer from the options given below :

A

A-I, B-II, C-III, D-IV

B

A-III, B-IV, C-I, D-II

C

A-IV, B-I, C-II, D-III

D

A-II, B-III, C-IV, D-I

4

JEE Main 2023 (Online) 25th January Morning Shift

MCQ (Single Correct Answer)

+4

-1

An electromagnetic wave is transporting energy in the negative $$z$$ direction. At a certain point and certain time the direction of electric field of the wave is along positive $$y$$ direction. What will be the direction of the magnetic field of the wave at that point and instant?

A

Negative direction of $$y$$

B

Positive direction of $$z$$

C

Positive direction of $$x$$

D

Negative direction $$x$$