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प्रश्न
What is meant by supersonic speed?
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उत्तर
Supersonic speed is a rate of travel of an object that exceeds the speed of sound in air.
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संबंधित प्रश्न
Describe an experiment to show that sound can travel in water.
Write the approximate speed of sound in steel.
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(a) in air?
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(c) in iron?
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Numerical problem.
A stone is dropped from the top of a tower 750 m high into a pond of water at the base of the tower. Calculate the number of seconds for the splash to be heard? (Given g = 10 m s–2 and speed of sound = 340 m s–1)
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(i) wavelength when the frequency is 256 Hz.
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