Electromagnetic Waves Test

Result

Electromagnetic Waves Test - 9

Score
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Rank
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TIME Taken - -

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Weekly Quiz Competition

Question 1
4 / -1

Speed of electromagnetic wave is the same

A
for all wavelengths

B
in all media

C
for all intensities

D
for all frequencies
Question 2
4 / -1

The maximum electric field in a plane electromagnetic wave is 900NC^–1. The wave is going in the x direction and the electric field is in the y direction. The maximum magnetic field in the wave is _____________T

A

B

C

D
Question 3
4 / -1

Electromagnetic waves are produced by

A
a static charge

B
a moving charge

C
an accelerating charge

D
chargeless particles
Question 4
4 / -1

Maxwell's equations are derived from the laws of ___________

A
electricity

B
magnetism

C
both electricity and magnetism

D
mechanics
Question 5
4 / -1

Which of the following electromagnetic waves has the longest wavelength?

A
Radio waves

B
Infrared radiations

C
x rays

D
visible rays
Question 6
4 / -1

Which of the following electromagnetic waves has the highest frequency?

A
radio waves

B
micro waves

C
r rays

D
x rays
Question 7
4 / -1

Which of the following electromagnetic waves is used in telecommunication?

A
radio waves

B
visible radiations

C
ultraviolet rays

D
micro waves
Question 8
4 / -1

A

B

C

D
Question 9
4 / -1

Dimensional formula of intensity of radiation is __________

A

B

C

D
Question 10
4 / -1

A
becomes half

B
become doubled

C
remain same

D
become √2 times