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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 |
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उत्तर
| Column A | Column B |
| (a) Vibrations cause | (3) sound |
| (b) A shriller sound is | (4) of high pitch |
| (c) Unit of frequency | (5) hertz |
| (d) Unit of time period | (2) second |
| (e) Curtains | (1) absorb sound |
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संबंधित प्रश्न
How does a man’s voice differ from a woman’s voice ?
How can the pitch of sound produced in a piano be changed ?
What do you mean by the term frequency of a wave? State its S.I. unit.
In which medium the speed of sound is more: humid air or dry air? Give a reason to your answer.
Arrange the speeds of sound in gases, solids, and liquids in ascending order.
The smoke from the gun barrel is seen 2 second before the explosion is heard. If the speed of sound in air is 350 ms-1, calculate the distance of observer from the gun.
Two observers are stationed in two boats 4.5 km apart. A sound signal sent by one, under water, reaches the other after 3 seconds. What is the speed of sound in the water?
Suppose that a sound wave and a light wave have the same frequency, then which one has a longer wavelength?
