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प्रश्न
The distance from one compression to nearest rarefaction is called wavelength.
पर्याय
True
False
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उत्तर
False.
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संबंधित प्रश्न
Shrillness of a sound is determined by the ______ of vibration.
An enemy plane is at a distance of 300 km from a radar. In how much time the radar will be able to detect the plane? Take velocity of radio waves as 3 x 108 ms-1
Explain the mechanism of the formation of a longitudinal wave when the source vibrates in the air.
How does the wave pattern of a loud note differ from a soft note? Draw a diagram.
State three factors on which loundess of sound heard by a listener depends.
It is observed that during march-past we hear a base drum distinctly from a distance compared to the side drums.
(i) Name the characteristics of sound associated with the above obervation.
(ii) Give a reason for the above observation.
Name musical instrument, one in each case, which produces its notes by using the following. In each case state the method used to produce notes of different pitches and loudness.
(a) A vibrating string.
(b) A vibrating column air.
(c) Vibration of any other body.
Give scientific reason for the following:
When a nail is hammering appears to get higher and higher in pitch.
Give scientific reason for the following:
Windows sometimes rattle when the low notes of a pipe organ are sounded.
