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Two waves of same amplitude a and freque...

Two waves of same amplitude a and frequency v and having a phase difference of `pi//2` radian, are superposed. The amplitude of resultant wave is

A

their resultant amplitude will be twice that of a single wave but the frequency will be same

B

their resultant amplitude and frequency will both be twice that a single wave

C

their resultant amplitude will depend on the phase angle while the frequency will be the same

D

the frequency and amplitude of the resultant wave will depend upon the phase angle.

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The correct Answer is:
C
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