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प्रश्न
Sound travels in the form of ______.
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उत्तर
Sound travels in the form of mechanical waves.
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संबंधित प्रश्न
The frequency of a source of sound is 100 Hz. How many times does it vibrate in a minute?
| 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 are longitudinal waves and transverse waves? Explain with the help of labelled diagrams.
Complete the following sentence :
Sound is produced by a ___________ body.
Complete the following sentences :
Wave velocity = ________________ × wavelength.
The separation between two consecutive crests in a transverse wave is 100 m. If wave velocity is 20 m s-1, find the frequency of wave.
What is the audible range of frequency for human?
How is the sound produced?
State the relation between the wavelength and the frequency.
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.
