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प्रश्न
Complete the following sentences :
Wave velocity = ________________ × wavelength.
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उत्तर
Wave velocity = frequency × wavelength.
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संबंधित प्रश्न
How does a bat make use of ultrasonics waves to find its way?
Name the characteristic which differentiates two sounds of the same pitch and same loudness.
An observer A fires a gun and another observer B at a distance 1650 m away from A hears its sound. If the speed of sound is 330 m s-1, find the time when B will hear the sound after firing by A.
Select the correct option:
In the region of compression or rarefaction, in a longitudinal wave, the physical quantity which does not change is:
On placing your ear close to an iron railing which is tapped some distance away, sound is heard twice. Explain, why?
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.
What do you mean by the frequency of sound?
Match the following.
| Ultrasonics | Frequency below 20Hz |
| Speed of sound in air | Needs material medium |
| Infrasonics | 330ms-1 |
| Sound propagation | Frequency more than 20000 Hz |
Find the odd one out.
