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प्रश्न
What is sound ?
एका वाक्यात उत्तर
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उत्तर
Sound is a form of energy which produces the sensation of hearing.
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संबंधित प्रश्न
Why are sound waves called mechanical waves?
Write true or false for a given statement.
Sound can only be produced by vibrating bodies.
How can the pitch of sound produced in a piano be changed ?
What type of wave is represented :
(a) by density-distance graph?
(b) by displacement-distance graph?
Can sound waves pass through vacuum?
What do you understand by sound signalling?
Draw a displacement-distance graph of a wave and mark on it, the amplitude of wave by the letter 'a' and wavelength of wave by the letter λ.
Describe a simple experiment to determine the speed of sound in air. What approximation is made in the method described by you?
Note is a sound
Write any two uses of ultrasonic sound.
