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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
What is loudness of sound? What factors does it depend on?
Fill in the blank.
We can hear sounds of frequency in the range of _______
State the factors on which the pitch of a sound depends.
Which wave property determines loudness?
What are characteristics of a wave motion?
Can sound waves be reflected?
Complete the following sentences :
Sound cannot travel through __________, but it requires a ___________.
A thin metal plate is placed against the teeth of cog wheel. Cog wheel is rotated at a speed of 120 rotations per minute and has 160 teeth. Calculate:
- frequency of node produced.
- speed of sound, if wavelength is 1.05 m.
- what will be the effect when the speed of cog wheel is doubled?
How do the following factor affect the speed of sound in air?
Moisture in air.
Sound travels in air:
