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प्रश्न
Arrange the speeds of sound in gases, solids, and liquids in ascending order.
उत्तर
The speed of sound is lowest in gases, higher in liquid, and highest in solids.
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संबंधित प्रश्न
Write true or false for a given statement.
A sound is a form of energy.
State the general name of the waves in which the particles of the medium vibrate :
(i) in the same direction as wave.
(ii) at right angles to the direction of wave.
In fig. shows a snap shot of a wave from of frequency 50 Hz in a string. The numbers in the diagram represents distance in centimeters. Fpr the wave motion, find
(a) Wavelength,
(b) Amplitude,
(c) Velocity.
Select the correct option:
A part of longitudinal wave in which particles of the medium are farther away than the normal particles is called :
What do you understand by the term sound energy?
A thin metal plate is placed against the teeth of cog wheel. Cog wheel is rotated at a speed of 120 rotations per minute and has 160 teeth. Calculate:
- frequency of node produced.
- speed of sound, if wavelength is 1.05 m.
- what will be the effect when the speed of cog wheel is doubled?
Explain how the principle of echo is used by
The dolphin to locate small fish as its prey.
What is echolocation? How do animals make use of this phenomenon?
Name the Sound of the Frequency Given Below:
200 Hz
