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प्रश्न
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उत्तर
The lowest frequency audible to human ear is 20 Hz and the highest frequency audible to human ear is 20,000 Hz.
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संबंधित प्रश्न
What are wavelength, frequency, time period and amplitude of a sound wave?
| Column A | Column B |
| (a) Vibrations cause | (1) absorb sound |
| (b) A shriller sound is | (2) second |
| (c) Unit of frequency | (3) sound |
| (d) Unit of time period | (4) of high pitch |
| (e) Curtains | (5) hertz |
What is sound ?
How is it possible to recognize a person by his voice without seeing him?
The longitudinal waves travel in a coiled spring at a rate of 4 m/s. The distance between two consecutive compressions is 20 cm. Find :
(i) Wavelength of the wave (ii) Frequency of the wave
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.
The wavelength of the vibrations produced on the surface of water is 2 cm. If the wave velocity is 16 ms-1, calculate:
- no. of waves produced in one second
- time required to produce one wave.
Consider the statement given below and choose the correct option.
Assertion: When lightning strikes, the sound is heard a little after the flash is seen.
Reason: The velocity of light is greater than that of the sound.
What is a longitudinal wave?
What is a wave?
