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प्रश्न
What are mechanical waves?
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उत्तर
Mechanical waves are those that result from the mutual exchange of kinetic and potential energy between mediums of particle vibrations.
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संबंधित प्रश्न
Name the principle on which a soundboard works.
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Write the approximate value of the speed of sound in air.
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State two factors on which the natural frequency of a body depends.
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(i) A man stands at a distance of 68 m from a cliff and fires a gun. After what time interval will he hear the echo, if the speed of sound in air is 340 ms−1?
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