1
TS EAMCET 2023 (Online) 14th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Electromagnetic radiation of intensity $0.6 \mathrm{Wm}^{-2}$ is falling on a black surface. The radiation pressure on the surface is

A

$2 \times 10^{-9} \mathrm{Nm}^{-2}$

B

$3 \times 10^{-9} \mathrm{Nm}^{-2}$

C

$4 \times 10^{-9} \mathrm{Nm}^{-2}$

D

$6 \times 10^{-9} \mathrm{Nm}^{-2}$

2
TS EAMCET 2023 (Online) 13th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

The speed of electromagnetic waves in a medium is $1.5 \times 10^8 \mathrm{~ms}^{-1}$. If relative permittivity of that medium is 2 , then its magnetic susceptibility is (speed of light in vacuum is $3 \times 10^8 \mathrm{~ms}^{-1}$ ).

A

2

B

3

C

1

D

-1.5

3
TS EAMCET 2023 (Online) 12th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

The correct statement among the following is

A
Electromagnetic waves cannot travel in vacuum
B
Electromagnetic waves are longitudinal waves
C
Electromagnetic waves are produced by charges moving with uniform velocity
D
Electromagnetic waves carry both energy and momentum as they propagate through space.
4
TS EAMCET 2023 (Online) 12th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
If a plane electromagnetic wave has electric field oscillations of frequency 3 GHz , then the wavelength of the wave is (speed of light in vacuum $=3 \times 10^8 \mathrm{~ms}^{-1}$ )
A
0.1 m
B
0.2 m
C
100 m
D
0.003 m

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