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प्रश्न
Select the correct option:
A longitudinal wave consists of:
विकल्प
crest and trough in the medium
compression and rarefaction in the medium
both crest and trough in the medium and compression and rarefaction in the medium
neither crest and trough in the medium and compression and rarefaction in the medium
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उत्तर
compression and rarefaction in the medium
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संबंधित प्रश्न
Write true or false for a given statement.
Larger is the amplitude, feeble is the sound.
| 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 |
On what factor does the loudness of a sound depend ?
How does the velocity of a wave vary with temperature?
Define the term wave velocity. Write its S.I. unit.
The sound of an explosion on the surface of a lake is heard by a boat man 100 m away and by a diver 100 m below the point of explosion.
(i) Who would hear the sound first: boatman or diver?
(ii) Give a reason for your answer in part (i).
(iii) If sound takes time t to reach the boatman, how much time approximately does it take to reach the diver?
What is musical sound? Give an example.
How does the sound produced by a vibrating object in a medium reach your ears?
