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प्रश्न
What is sound ?
उत्तर
Sound is a form of energy which produces the sensation of hearing.
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संबंधित प्रश्न
List the measures that you will take when designing a sound-proof room.
Define the term intensity of a sound wave. State the unit in which it is measured.
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Select the correct option:
If the frequency of a wave is 25 Hz. the total number of compressions and rarefactions passing through a point in 1 second is :
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Two observers are stationed in two boats 4.5 km apart. A sound signal sent by one, under water, reaches the other after 3 seconds. What is the speed of sound in the water?
