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CBSE
Class 12 Physics
Electromagnetic Waves
Quiz 2
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Choose the wrong statement?
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Electromagnetic waves are transverse
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Electromagnetic waves travel with the speed of light in free space
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Electromagnetic waves are produced by accelerating charges
0%
Electromagnetic waves travel with the same speed in all media
Explanation
Electromagnetic waves travel with the same speed in all media
If u
e
and u
m
arc the electric and magnetic field densities in an electromagnetic wave, then (c is the speed of light):
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u
e
= u
m
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u
e
= c u
m
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u
e
= \(\frac{u_m}{c}\)
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None of these
Explanation
u
e
= u
m
Solar radiation is :
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transverse EMW
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longitudinal EMW
0%
both (a) and (b)
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None of these
Explanation
transverse EMW
Ampere’s circuital law was modified by:
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Laplace
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Gauss
0%
Maxwell
0%
Hertz
Explanation
Maxwell
Light Year is the unit of:
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distance
0%
time
0%
energy
0%
intensity of light
Explanation
distance
0 h : 0 m : 1 s
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