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Speed of Sound

A tuning fork...

Question

A tuning fork sends out so waves of wavelength 68.75 cm and 3 m in air and hydrogen respectively. If the velocity of sound in air is 330 m/s. Find the velocity of sound in hydrogen. Also, find the frequency of thetuning fork.

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Q. Find the frequency of tuning fork.
Assume velocity of sound in the first and second chamber be 1100 m/s and 300 m/s respectively. Velocity of sound in air 330 m/s.

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