In an experiment it was found that when a sonometer in its fundamental mode of vibration and a tuning fork gave 5 beats when length of wire is 1.05 metre or 1 metre. The velocity of transverse waves in sonometer wire when its length is 1m
A
400m/s
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B
210m/s
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C
420m/s
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D
450m/s
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Solution
The correct option is C420m/s δs1−δs2=2×beat =2×5 =10