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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