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प्रश्न
Mention two properties of a wave, one property which varies and the other which remains constant when the wave passes from one medium to another.
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उत्तर
Here we refer to a mechanical wave, its two properties are:
(i) These waves transmit only energy and momentum through the limited motion of the particles of the medium.
(ii) While transmitting energy, the medium remains unshifted, i.e., only energy is transmitted while particles of the matter of the medium do not travel with the same.
संबंधित प्रश्न
How is the frequency of a stretched string related to its length?
Define wave velocity term in relation to a wave.
A wave passes from one medium to another medium. Mention one property of the wave out of speed, frequency or wavelength which changes.
How do bats avoid obstacles in their way, when in flight?
Explain how the principle of echo is used by
The dolphin to locate small fish as its prey
Explain how is the principle of echo used by
(a) The bat during its flight at night,
(b) The dolphin to locate small fish as its prey.
What do you mean by reflection of sound? State one condition for the reflection of a sound wave. Name a device in which reflection of sound wave is used.
Why will an echo not be heard when the distance between the source of the sound and the reflecting surface is 10 m?
