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प्रश्न
Arrange the speeds of sound in gases, solids, and liquids in ascending order.
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उत्तर
The speed of sound is lowest in gases, higher in liquid, and highest in solids.
संबंधित प्रश्न
The frequency of a source of sound is 100 Hz. How many times does it vibrate in a minute?
Write true or false for a given statement.
A ticking clock sound is heard late when heard through a metal.
Select the correct alternative :
We can hear sound of frequency
The sound of an explosion on the surface of a lake is heard by a boat man 100 m away and by a diver 100 m below the point of explosion.
(i) Who would hear the sound first: boatman or diver?
(ii) Give a reason for your answer in part (i).
(iii) If sound takes time t to reach the boatman, how much time approximately does it take to reach the diver?
The speed of light in air is :
Sound is generated by the rhythmic ______ of an object.
Select the correct option:
A part of the longitudinal wave in which particles of the medium are closer than the normal particles is called:
Sound travels in the form of ______.
A sound wave travels 2000 m in 8 s. What is the velocity of the sound?
Match the following
| 1. | Infrasonic | (a) | Compressions |
| 2. | Echo | (b) | 22 kHz |
| 3. | Ultrasonic | (c) | 10 Hz |
| 4. | High-pressure region | (d) | Ultrasonography |
