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Sound Test - 73...

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  • Question 1
    1 / -0

    A gun is fired and the echo is heard after $$2.5\ s$$. The distance of the gun from the cliff is if the velocity of sound in air is $$332\ ms^{-1}$$.

  • Question 2
    1 / -0

    It is possible to recognise a person by hearing his voice even if he is hidden behind a wall. This is due to the fact that his voice

  • Question 3
    1 / -0

    Objects that have hard-to-reach places for cleaning are placed in _________ and ultrasound waves are sent there.

  • Question 4
    1 / -0

    Th eardrum sends the vibrations to the _______?

  • Question 5
    1 / -0

    Which of these correctly represents the definition of frequency?

  • Question 6
    1 / -0

    Which of these is not a function of the ear drum?

  • Question 7
    1 / -0

    Which of the following is not a property of ultrasound that makes it useful in medicine?

  • Question 8
    1 / -0

    Frequency is expressed in?

  • Question 9
    1 / -0

    Which of the following correctly describes a wave?

  • Question 10
    1 / -0

    Sound waves are also called?

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