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Question
Physics
Which of the following has zero average value in a plane electromagnetic wave?
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Q. Which of the following has zero average value in a plane electromagnetic wave?
UPSEE
UPSEE 2013
A
Kinetic energy
B
Magnetic field
C
Electric field
D
Both (b) and (c)
Solution:
In electromagnetic wave, the average value of electric field or magnetic field is zero.