1
JEE Main 2023 (Online) 1st February Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Match List I with List II :

List I List II
A. Microwaves I. Radio active decay of the nucleus
B. Gamma rays II. Rapid acceleration and deceleration of electron in aerials
C. Radio waves III. Inner shell electrons
D. X-rays IV. Klystron valve

Choose the correct answer from the options given below :

A
A-I, B-III, C-IV, D-II
B
A-IV, B-III, C-II, D-I
C
A-IV, B-I, C-II, D-III
D
A-I, B-II, C-III, D-IV
2
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
3
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
4
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
JEE Main Subjects
EXAM MAP
Medical
NEET
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
Defence
NDA
CBSE
Class 12