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प्रश्न
Describe an experiment to show that sound can travel in water.
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उत्तर
Take a tub filled with water. Hold a bell in one hand and dip it in water. Keep one of your ears gently on the surface of water without letting water into the ear. Now ring the bell inside water. You will be able to hear the sound clearly. This shows that sound can travel through liquids.
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संबंधित प्रश्न
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Which of the following is the speed of sound in copper and which in aluminium?
(a) 5100 m/s
(b) 1500 m/s
(c) 3750 m/s
A sound signal of 128 vibrations per second has a wavelength of 2.7 m. Calculate the speed with which the wave travels.
Sunil is standing between two walls. The wall closest to him is at a distance of 660 m. If he shouts, he hears the first echo after 4 s and another after another 2 seconds.
- What is the velocity of sound in air?
- What is the distance between the two walls?
Write the formula for speed of sound in a gas using Laplace correction.
Why does the flash of lighting reach earlier than the sound of thunder?
The velocity of sound in solid is ______ than the velocity of sound in air.
Why does sound travel faster on a rainy day than on a dry day?
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.
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