A person standing near a hill fires a gu...

A person standing near a hill fires a gun and hears the echo after 1 second. If speed of sound in air is `340 m//s`. Find the distance between the hill and the person.

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Solve the following example: A person standing between two hills fired a gun and heard the first echo after 0.5 s and the second echo after 0.9 s. Find the distance between two hills. (speed of sound in air =340 m//s )

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A man standing between two cliffs claps his hands and starts hearing series of echoes at interval of one second. Since the speed of sound in air is 340 m//s , the distance between cliffs must be

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CHETANA PUBLICATION-Study of Sound-EXERCISE

A person standing near a hill fires a gun and hears the echo after 1 s...
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The unit of frequency is …………… .
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The normal hearing range for humans is ………… .
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Sound will not travel through ……….. .
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SI unit of …………..is Hertz (Hz).
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The velocity of sound is inversely proportional to the………… .
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Sound waves with frequency greater than 20 kHz are called……….. .
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The loudness of a sound depends upon ………… .
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…../… are used in sonography.
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The ……….receives the vibrations coming from the membrane and converts ...
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Sound will not travel through ……….. .
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SI unit of …………..is Hertz (Hz).
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The loudness of a sound depends upon ………… .
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…………are used in sonography.
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Match the columns:
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The intensity of reverberation is higher in a closed and empty house.
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Bats can navigate in dark.
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Sound travels faster in iron than in air.
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The roof of a movie theatre and a conference hall is curved. Why?
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The intensity of reverberation is higher in a closed and empty house.
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What is an echo? What factors are important to get a distinct echo?
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