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प्रश्न
What is the noise? Give an example.
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उत्तर
Noise is a harsh and unpleasant sound produced by a body making a succession of irregular and discontinuous disturbances, e.g., a sound produced by a stone thrown on a thin sheet, the thunder of lightning, etc.
संबंधित प्रश्न
Name the factor that determines Loudness of the sound heard.
When sound travels in form of a wave
Define the following term:
Frequency
How does the wave pattern of a loud note differ from a soft note? Draw a diagram.
Two identical guitars are played by two persons to give notes of the same pitch. Will they differ in quality? Give a reason for your answer.
Give scientific reason for the following:
Windows sometimes rattle when the low notes of a pipe organ are sounded.
How can one distinguish the sounds of two musical instruments even if they are of the same pitch and same loudness?
Give a scientific reason.
The sounds generated by a tabla and a sitar are different.
Give a scientific reason.
We can hear the movement of a mosquito’s wings but we cannot hear the movement of our hands.
