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प्रश्न
A musical instrument is producing continuous note. This note cannot be heard by a person having a normal hearing range. This note must then be passing through ______.
पर्याय
wax
vacuum
water
empty vessel
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उत्तर
A musical instrument is producing continuous note. This note cannot be heard by a person having a normal hearing range. This note must then be passing through vaccum.
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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 |
Draw a graph between displacement from mean position and time for a body executing free vibrations in vacuum.
Explain the terms 'crests' and troughs' of a wave? What type of waves consist of crests and troughs?
In an experiment, Anhad studies sound waves. He sets up a loudspeaker to produce sound as shown below :
Anhad adjusts the signal to the loudspeaker to give a sound of frequency 200 Hz.
(a) What happens to the air in-between Anhad and the loudspeaker ?
(b) Explain how Anhad receives sound in both ears.
When we change a feeble sound to a loud sound, we increase its :
What is sound? How is it produced?
How do the following factor affect the speed of sound in air?
Temperature of air
Mention two cases in which there is no Doppler effect in sound?
Longitudinal waves are produced in solids liquids and also in gases.
