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प्रश्न
Write true or false for a given statement.
Female voice is shriller than the male voice.
विकल्प
True
False
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उत्तर
True
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संबंधित प्रश्न
Select the correct alternative :
We can hear sound of frequency
When we change a feeble sound to a loud sound, we increase its :
Before playing the orchestra in a musical concert, a sitarist tries to adjust the tension and pluck the strings suitably. By doing so he is adjusting :
'Note' is a sound :
Complete the following sentence :
Sound is produced by a ___________ body.
Define the term amplitude of a wave. Write its S.I. unit.
State the relation between the wavelength and the frequency.
The distance between three consecutive crests of wave is 60 cm. If the waves are produced at the rate of 180/ min, calculate:
- wavelength
- time period
- wave velocity.
What do you mean by an echo?
Sound waves travel very fast in
