Beats are the result of [CPMT 1971; J & K CET 2002]

1.	Beats are the result of [CPMT 1971; J & K CET 2002]
A.	Diffraction
B.	Destructive interference
C.	84 Hz
D.	Superposition of two waves of nearly equal frequency
Answer» E.

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Beats are the result of [CPMT 1971; J & K CET 2002]

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