# ELECTROMAGNETIC WAVES

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ELECTROMAGNETIC WAVES - Topic Wise Multiple Choice Questions (MCQ)

Topic Wise free Electromagnetic waves MCQ with solutions for 11th 12th exam Practice Multiple Choice Questions and answer for JEE-mains State CET Engineering Entrance GATE free Online Test

1 )

Who produced the electromagnetic waves first?

Marconi
Maxwell
J.C. Bose
Hertz

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2 )

The dimensional formula of μoEo is ____________

Select correct option from the following options.

(A) L2T–2     (B) L–2T2     (C) L1T–1     (D) L–1T1

A
B
C
D

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3 )

A plane electromagnetic wave is incident on a material surface. The wave delivers momentum P and energy E

P = 0, E ≠ 0
P ≠ 0, E = 0
P ≠ 0, E ≠ 0
P = 0, E = 0

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4 )

If Vr, Vx and Vm are the velocity of the γ rays, x rays, micro waves respectively in space, then

Vγ < Vx < Vm
Vr = Vx = Vm
Vr > Vx > Vm
Vr > Vx < Vm

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5 )

If λγ, λx and λm are the wave lengths of the γ-rays, x rays and micro waves respectively in space then

λγ > λx > λm
λγ < λx < λm
λγ = λx = λm
λγ < λm < λx

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