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प्रश्न
Sound travels in air:
विकल्प
if there is no moisture in the atmosphere.
if particles of medium travel from one place to another.
if both particles as well as disturbance move from one place to another.
if disturbance moves.
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उत्तर
if particles of medium travel from one place to another.
APPEARS IN
संबंधित प्रश्न
State the general name of the waves in which the particles of the medium vibrate :
(i) in the same direction as wave.
(ii) at right angles to the direction of wave.
What is sound? How is it produced?
Complete the following sentence :
Sound is produced by a ___________ body.
Define the term amplitude of a wave. Write its S.I. unit.
Draw a displacement-time graph for water wave.
The diagram given below shows a displacement distance graph of a wave. If the velocity of wave is 160 ms-1, calculate:
- wavelength
- frequency
- amplitude.
Can you hear each other in a dark room?
What do you understand by the term echo?
