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प्रश्न
State two factors on which the natural frequency of a body depends.
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उत्तर
(i) The shape of the body, and
(ii) The size of the body.
संबंधित प्रश्न
A certain sound has a frequency of 256 hertz and a wavelength of 1.3 m.
1) Calculate the speed with which this sound travels
2) What difference would be felt by a listener between the above sound and another sound traveling at the same speed, but of wavelength 2.6 m?
Define frequency term in relation to a wave.
Define wave velocity term in relation to a wave.
State two factors on which the speed of a wave travelling in a medium depends.
The following diagram shows three ways in which the string of an instrument can vibrate.
(a) which of the diagram shows the principal note?
(b) which has the frequency four times that of the first?
(c) what is the ratio of the frequency of the vibration in (i) and (ii)?
Explain how the principle of echo is used by
The bat during its flight at
A radio signal, sent towards the surface of the moon, is received in 2.5 seconds. If the speed of the radio waves is 3 × 108 ms−1, find the distance of the moon from the earth.
