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प्रश्न
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उत्तर
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संबंधित प्रश्न
Name the two characteristics of sound which differentiate two sounds from each other.
List four substances which are good absorbers of sound.
Are sound waves longitudinal or transverse?
Answer the following question :
Can sound travel in vacuum?
An observer A fires a gun and another observer B at a distance 1650 m away from A hears its sound. If the speed of sound is 330 m s-1, find the time when B will hear the sound after firing by A.
What is the audible range of frequency for human?
A bat emits an ultrasonic sound of frequency 0.25 MHz. Calculate the time in which one vibration is completed.
The diagram given below shows a displacement distance graph of a wave. If the velocity of wave is 160 ms-1, calculate:
- wavelength
- frequency
- amplitude.
What do you mean by an echo?
Draw a curve showing density or pressure variations with respect to distance for a disturbance produced by sound. Mark the position of compression and rarefaction on this curve. Also, define wavelengths and time periods using this curve.
