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Amplitude Variation

Two waves of ...

Question

Two waves of same frequency and intensity superimpose with each other in opposite phases, then after superposition the

[AFMC 1995]

A

Intensity increases by 4 times

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B

Intensity increases by two times

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C

Frequency increases by 4 times

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D

None of these

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Solution

The correct option is D
None of these

This is a case of destructive interference.

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