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Sound Wave

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    Sound Wave
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  • Sound wave is a .......... wave depending on the vibration of particles.
    Longitudinal
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  • Tell us the correct formula to find the speed of sound.
    v = d / t
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  • The audible range of human is ...........
    20 Hz to 20000Hz
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  • Frequencies which are higher than 20000Hz are known as ........... sound.
    Ultra
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  • Frequencies which are lower than 20Hz are called as .......... sound.
    Infra
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  • Which animal can hear over 100000Hz?
    Bats / Dolphins
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  • What is an animal which can hear the infra sound?
    Elephants / Whales
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  • Who discovered that sound moves in waves?
    Galileo Galilei
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  • A different type of sound wave which occurs only in solids is called ........wave.
    Shear
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  • If temperature increase one degree, the speed of sound will increse .......... in percentage.
    0.2
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  • In air medium,the speed of spund increses by .......... m/s with temperature rise by one degree.
    0.6
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  • Sound wave is produced by ......... object.
    vibrating
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