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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
Write true or false for a given statement.
Sound can travel in a vacuum.
Fill in the blanks with suitable words .
Wave speed in metres per second equals frequency in ............ multiplied by ..................... in ..................
The speeds of sound in four different media are given below. Which of the following is the most likely speed in m/s with which the two under water whales in a sea talk to each other when separated by a large distance?
Fill in the blank and explain.
The velocity of sound in steel is ______ than the velocity of sound in water.
The speed of sound in air at 0°C is 332 m/s. If it increases at the rate of 0.6 m/s per degree, what will be the temperature when the velocity has increased to 344 m/s?
Helium gas is filled in two identical bottles A and B. The mass of the gas in the two bottles is 10 gm and 40 gm respectively. If the speed of sound is the same in both bottles, what conclusions will you draw?
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)
The velocity of sound is independent of temperature.
Why does sound travel faster on a rainy day than on a dry day?
When temperature increases the speed of sound ______.
