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प्रश्न
Fill in the blank.
The number of times a body vibrates in one second is called its ______.
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उत्तर
The number of times a body vibrates in one second is called its frequency.
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संबंधित प्रश्न
Write true or false for a given statement.
Larger is the amplitude, feeble is the sound.
Name the two characteristics of sound which differentiate two sounds from each other.
What change do you expect in the characteristics of a musical sound if
(i) Its frequency is increased,
(ii) Its amplitude is increased?
Define the term amplitude of a wave. Write its S.I. unit.
Describe briefly an experiment to prove that vibrating bodies produce sound.
A continuous progressive transverse wave of frequency 8 Hz moves across the surface of a ripple tank
If the wavelength of the transverse wave is 32 mm, calculate the speed with which wave travels across the surface of the water.
State the effect of pressure on the speed of sound in air.
The smoke from the gun barrel is seen 2 second before the explosion is heard. If the speed of sound in air is 350 ms-1, calculate the distance of observer from the gun.
Two observers are stationed in two boats 4.5 km apart. A sound signal sent by one, under water, reaches the other after 3 seconds. What is the speed of sound in the water?
The sound produced by a thunderstorm is heard 10 s after the lightning is seen. Calculate the approximate distance of the thunder cloud. (Given the speed of sound = 340 m s–1.)
