Wave has simple harmonic motion whose period is 4 seconds while another wave which also possesses simple harmonic motion has its period 3
Wave has simple harmonic motion whose period is 4 seconds while another wave which also possesses simple harmonic motion has its period 3 second. If both are combined, then the resultant wave will have the period equal to
(a) 4 s
(b) 5 s
(c) 12 s
(d) 3 s
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Correct option (c) 12 s
Explanation:
Beats are produced.
Frequency of beats will be 1/3 -1/4 = 1/12 .
Hence time period = 12 s.
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