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Sound Test - 26...

TIME LEFT -
  • Question 1
    1 / -0

    The amplitude of vibration and frequency can abruptly change in a what kind of sound?

  • Question 2
    1 / -0

    The lowest pitch out of the following sources is that of a

  • Question 3
    1 / -0

    What is the safe limit of sound level (in $$dB$$) for our ears?

  • Question 4
    1 / -0

    The time period of a simple pendulum is $$2 \ s$$. Find its frequency?

  • Question 5
    1 / -0

    Choose the correct option. 
    Sound cannot travel in:

  • Question 6
    1 / -0

    Bats detect the obstacles in their path by receiving the reflected

  • Question 7
    1 / -0

    A progressive sound wave of frequency 500Hz is travelling through air with a speed of $$ 350 ms^{-1} $$. A compression maximum appears at a place at a given instant. The minimum time interval after which the rarefraction maximum occurs at the same point , is

  • Question 8
    1 / -0

    The heart of a man beats $$75$$ times a minute. What is its time period?

  • Question 9
    1 / -0

    Complete the following sentence.


    Sound can not travel through ..............................., but it requires a ................... .

  • Question 10
    1 / -0

    The heart of a man beats $$75$$ times a minute. What is its frequency?

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