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प्रश्न
What causes sound in air?
उत्तर
The waves in the air causes sound . Through waves , energy get transferred from one place to another and hence the sound.
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संबंधित प्रश्न
| 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 |
State the speed of (i) light and (ii) sound in air?
Select the correct option:
In the region of compression or rarefaction, in a longitudinal wave, the physical quantity which does not change is:
Can we produce sound in vacuum?
The sound waves travel faster ______.
Describe with diagram, how compressions and rarefactions are produced.
If the energy in a longitudinal wave travels from south to north, the particles of the medium would be vibrating in _____.
Assertion: The sound of thunder is heard a little later than the flash of light.
Reason: The speed of sound is much less than the speed of light.
Find the odd one out.
