Sound

Sound

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Physics

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  1. We cannot hear on the surface of the moon because








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    Sound waves require material medium to travel. Moon has no such material mediums.

    Correct Option: B

    Sound waves require material medium to travel. Moon has no such material mediums.

  1. Sound above what level (in decibel) is considered hazardous noise pollution?








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    Sound above 80 dB is considered hazardous noise pollution.

    Correct Option: D

    Sound above 80 dB is considered hazardous noise pollution.

  1. Sound travels in the form of








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    Sound travels in the form of longitudinal waves. These waves travel in the form of compressions and rarefactions.

    Correct Option: B

    Sound travels in the form of longitudinal waves. These waves travel in the form of compressions and rarefactions.