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प्रश्न
What causes sound in air?
एका वाक्यात उत्तर
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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
Why are sound waves called mechanical waves?
| 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 type of waves are illustrated by the movement of a rope whose one end is fixed to a pole and the other end is moved up and down?
Distinguish between longitudinal and transverse waves.
Which of the following frequency of sound can be generated by a vibrating simple pendulum as well as by the vibrating vocal cords of a rhinoceros ?
Is pitch same as frequency?
What is the safe limit of sound level of db for our ears?
Select the correct option:
The longitudinal waves can propagate only in
What kinds of waves are produced in solids, liquids, and gases?
How do bats avoid obstacles in their way, when in flight?
