Electromagnetic Waves Test

Result

Electromagnetic Waves Test - 2

Score
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Rank
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TIME Taken - -

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Weekly Quiz Competition

Question 1
4 / -1

Electromagnetic waves can be deflected by

A
electric field only

B
magnetic field only

C
Both (1) and (2)

D
None of the above
Question 2
4 / -1

In an electromagnetic wave, direction of propagation is in the direction of

A
E

B
B

C
E × B

D
None of these

Solution
Question 3
4 / -1

Rank the following radiations according to their associated energies, greatest first.
I. Yellow light from a sodium lamp.
II. γ – rays emitted by a radioactive nucleus.
III. Radio waves emitted by the antenna.
IV. Microwaves beam emitted by radar.

A
II, I, IV, III

B
I, II, III, IV

C
III, IV, I, II

D
I, II, IV, III

Solution
Question 4
4 / -1

Which of the following is absorbed by the ozone layer?

A
γ – rays

B
Visible light

C
Radio waves

D
Ultraviolet rays
Question 5
4 / -1

An electromagnetic radiation has an energy of 13.2 keV. Then, the radiation belongs to the region of

A
visible light

B
ultraviolet

C
infrared

D
X – rays
Question 6
4 / -1

The frequency 1057 MHz of radiation arising from two close energy levels in hydrogen belongs to

A
radio waves

B
infrared waves

C
microwaves

D
γ – rays
Question 7
4 / -1

All components of the electromagnetic spectrum in vacuum have the same

A
energy

B
velocity

C
wavelength

D
frequency

Solution
Question 8
4 / -1

The displacement current was first postulated by

A
Maxwell

B
Marconi

C
Ampere

D
Hertz
Question 9
4 / -1

A plane electromagnetic wave is incident on a material surface. If the wave delivers momentum p and energy E, then

A
p = 0, E = 0

B
p ≠ 0, E ≠ 0

C
p ≠ 0, E = 0

D
p = 0, E ≠ 0
Question 10
4 / -1

An expression for the magnetic field strength B at the point between the capacitor plates indicates in Fig. Express B in terms of the rate of change of the electric field strength i.e. dE/dt between the plates

A

B

C
zero

D

Solution