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(a) Does the medium through which sound ...

(a) Does the medium through which sound passes also move ?
(b) What role does a medium play in the propagation of sound ?

Text Solution

Verified by Experts

(a) No. It is the sound energy that travels in a medium.
(b) A material medium is essential for the propagation of sound energy.
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Following are down the steps of an experiment to prove that medium is required for the propagation of sound waves. Arrange these steps in propagation of sound waves. Arrange these steps in proper sequence (a) Consider a glass jar with an outlet connected to a vacuum pump and a closed lid (b) Suspend an electric bell. (c) Evacuate the jar by using a vaccum pump (d) Switch on the electric bell (e) Observe that the intensity of the sound is less when the jar is evacuated (f) This proves that medium is required for the propagation of sound

Knowledge Check

  • The medium through which sound is to propagate must be

    A
    Elastic, Inertial, Frictionless
    B
    Rigid, Frictionless
    C
    Inertial, Frictionless
    D
    None of these

  • Following are down the steps of an experiment to prove that medium is required for the propagation of sound waves. Arrange these steps in propagation of sound waves. Arrange these steps in proper sequence (a) Consider a glass jar with an outlet connected to a vacuum pump and a closed lid (b) Suspend an electric bell. (c) Evacuate the jar by using a vaccum pump (d) Switch on the electric bell (e) Observe that the intensity of the sound is less when the jar is evacuated (f) This proves that medium is required for the propagation of sound

    A
    f e d a b c
    B
    a b d e c f
    C
    a b d c e f
    D
    a b c d e f

  • For sound waves to propagate in a medium it should have the property of

    A
    Elasticity
    B
    Inertia
    C
    Both inertia and elasticity
    D
    Either inertia or elasticity