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प्रश्न
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उत्तर
The sound heard after reflection from a rigid obstacle (such as cliff, a hillside, a wall of a building, edge of a forest etc.), is called an echo.
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संबंधित प्रश्न
Define amplitude term in relation to a wave.
Define wavelength term in relation to a wave.
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Explain how the principle of echo is used by the bat during its flight at night.
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Write the approximate value of the speed of sound in iron.
How are bats able to fly in the dark?
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In what respect does waveforms of noise and a musical note differ. Draw diagrams to illustrate your answer.
The direction of the incident sound, the direction of reflected sound, and the normal are in different Planes.
