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प्रश्न
In a longitudinal wave, compression and rarefaction are formed.
विकल्प
True
False
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उत्तर
True.
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संबंधित प्रश्न
State two conditions for an echo to take place
A person standing between two vertical cliffs and 480 m from the nearest cliff shouts. He hears the first echo after 3s and the second echo 2s later. Calculate:
1)The speed of sound.
2) The distance of the other cliff from the person
A person is standing at the seashore. An observer on the ship which is anchored in between a vertical cliff and the person on the shore fires a gun. The person on the shore hears two sounds, 2 seconds and 3 seconds after seeing the smoke of the fired gun. If the speed of sound in the air is 320 ms-1 then calculate:
1) the distance between the observer on the ship and the person on the shore.
2) the distance between the cliff and the observer on the ship.
The distance from one compression to nearest rarefaction is called wavelength.
When sound travels in form of a wave
Name and define the characteristic which enables one to distinguish two sounds of same loudness, but of different frequencies, given by the same instrument.
Explain the following and illustrate your answer by drawing appropriate diagram:
Quality of a musical note.
Name musical instrument, one in each case, which produces its notes by using the following. In each case state the method used to produce notes of different pitches and loudness.
(a) A vibrating string.
(b) A vibrating column air.
(c) Vibration of any other body.
Name one main factor on which each character such as intensity, pitch, and quality of musical sound depends.
Give a scientific reason.
The sounds generated by a tabla and a sitar are different.
