The amplitude of an electromagnetic wave in vacuum is quadrupled with no other changes made to the wave. As a result of this quadrupled of the amplitude, which of the following statement is correct?
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a
The speed of wave propagation changes only
b
The frequency of the wave changes only
c
The wavelength of the wave changes only
d
Speed, frequency & wavelength of the wave remains constant
answer is D.
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Detailed Solution
Speed C=1μ0∈0 , Frequency & wavelength of em wave is independent of amplitude of em wave.