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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The speed of wave propagation changes only

The frequency of the wave changes only

The wavelength of the wave changes only

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.

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