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प्रश्न
The velocity of sound in air at a particular temperature is 330 ms–1. What will be its value when temperature is doubled and the pressure is halved?
विकल्प
330 ms–1
165 ms–1
330 × √2 ms–1
320 / √ 2 ms–1
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उत्तर
330 ms-1
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संबंधित प्रश्न
In which of the three media, air, water or iron, does sound travel the fastest at a particular temperature?
Describe an experiment to show that sound can travel in water.
Guess which sound has a higher pitch:
What is the speed of sound :
(a) in air?
(b) in water?
(c) in iron?
Calculate the speed of a sound wave whose frequency is 2 kHz and wavelength 65 cm.
The speed of highly penetrating ultrasonic waves is :
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 thunder of cloud is heard 9.8 seconds later than the flash of lightning. If the speed of sound in air is 330 ms–1, what will be the height of the cloud?
Assertion: The speed of sound in air is less than the speed of sound in solid.
Reason: If we increase the temperature of medium, the speed of sound increases in any medium.
Numerical problems:
Two persons are at opposite ends of a steel rod. One strikes the end of the rod with a stone. Find the ratio of time taken by the sound wave in the air and in steel to reach the second person. (Sound of speed in steel = 5960 ms-1, Sound of speed in air = 344 ms-1).
