The velocity of waves in a string fixed ...

The velocity of waves in a string fixed at both ends is 3 m/s. The string forms standing waves with nodes 6 cm apart. The frequency of vibration of the string is

25 Hz

50 Hz

15 Hz

10 Hz

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Verified by Experts

The correct Answer is:

`lambda/2 = 6 cm :. lambda = 12 ` cm
` n = v/lambda = 300/12 = 25 ` Hz

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