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Sound Test - 15...

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  • Question 1
    1 / -0

    Use the following information to answer the next question.

    Tarun fills a beaker with water and puts a small piece of cork in it. He then strikes a tuning fork with a rubber hammer and gently touches its vibrating prongs on the water surface.

    As consequence of Tarun’s action, the cork will

  • Question 2
    1 / -0

    Use the following information to answer the next question.

    Four small glass boxes I, II, III, and IV are placed in front of Yashika. Boxes I, II, and III are filled with oil, water, and sand respectively. Box IV is devoid of any medium. A waterproof sound-producing device is given to her and she is asked to put that device in that box from which no sound can be heard.

    In which box should Yashika place the sound-producing device?

  • Question 3
    1 / -0

    Which of the following physical quantities remains unchanged when a sound wave enters from one medium to another?

  • Question 4
    1 / -0

    A loud sound is characterised by

  • Question 5
    1 / -0

    Use the following information to answer the next question.

    Three statements regarding the speed of sound:

    I In air, the speed of sound is slower than that of light.

    II The speed of sound is the minimum in a gaseous medium.

    III The speed of sound in a medium decreases with an increase in the temperature of the medium.

    With respect to the speed of sound,

  • Question 6
    1 / -0

    In a cinema hall or in an auditorium, the roof and the inside walls are covered with compressed fibre boards and draperies. Heavy curtains are placed on the doors and seats are made up of cushioned materials. The given arrangements are done to

  • Question 7
    1 / -0

    Use the following information to answer the next question.

    Ultrasounds are high frequency waves. They can travel along a well-defined path even in the presence of an obstacle.

    The property of an ultrasound cannot be used in

  • Question 8
    1 / -0

    Use the following information to answer the next question.

    The frequency of sound produced by different animals can be categorised as infrasonic, audible, and ultrasonic, depending on the frequency range of the produced sounds.

    Which table shows the frequency ranges of each of the given terms?

  • Question 9
    1 / -0

    With reference to the human ear, the functioning of the cochlea is to

  • Question 10
    1 / -0

    An audible sound is produced when a

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