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प्रश्न
Which of the following terms apply to sound waves in air and which to water waves?
Transverse, Rarefaction, Trough, Crest, Compression, Longitudinal
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उत्तर
Sound waves in air are longitudinal in nature because it forms successive compressions and rarefactions due to the continuous pressure variation.
Water waves are transverse in nature because it forms successive crests and troughs.
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संबंधित प्रश्न
Describe with the help of a diagram, how compressions and rarefactions are produced in air near a source of sound.
State one observation from everyday life which shows that sound travels much more slow than light.
Give scientific reasons:
As the sound wave propagates from one place to the other in air, the air itself is not required to move from one place to the other.
Explain the experiment, with a neat diagram, to prove the following:
'Sound needs material medium for propagation.'
Describe in brief, with the aid of a lebelled diagram, an experiment to demonstrate that a material medium is necessary for propagation of sound.
Flash of lightning reaches earlier than the sound of thunder. Explain the reason.
Sound cannot travel in ______.
the speed of sound in air is 331 ms-1 at ______ and ______ at 22°C.
The amount of water vapour present in the air is known as ______.
Find the odd one out.
