1
JEE Main 2023 (Online) 31st January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
Match List I with List II

LIST I LIST II
A. Microwaves I. Physiotherapy
B. UV rays II. Treatment of cancer
C. Infra-red light III. Lasik eye surgery
D. X-ray IV. Aircraft navigation

Choose the correct answer from the options given below:
A
A - IV, B - III, C - I, D - II
B
A - II, B - IV, C - III, D - I
C
A - III, B - II, C - I, D - IV
D
A - IV, B - I, C - II, D - III
2
JEE Main 2023 (Online) 29th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

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
3
JEE Main 2023 (Online) 29th January Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

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
4
JEE Main 2023 (Online) 25th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

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
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