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Electromagnetic Waves question

2022 · 25 Jun · Shift 1 · Q55

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JEE Main
Physics
Electromagnetic Waves
2022 · 25 Jun · Shift 1 · Q55

Electromagnetic Waves question

2022 · 25 Jun · Shift 1 · Q55

JEE MainPhysicsElectromagnetic WavesMCQ+4 / −1

The electric field in an electromagnetic wave is given by E = 56.5 sin

\omega

(t

-

x/c) NC

-

1. Find the intensity of the wave if it is propagating along x-axis in the free space. (Given :

\varepsilon

0 = 8.85

\times

10

-

12C2N

-

1m

-

2)

A
5.65 Wm $-$ 2
B
4.24 Wm $-$ 2
C
1.9 $\times$ 10 $-$ 7 Wm $-$ 2
D
56.5 Wm $-$ 2

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