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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
The time period of a wave is 2 s. Its frequency is ..........
Standing at a distance, how is it possible to detect the filling of bucket under a water tap by hearing the sound?
- Which of the following quality determines the loudness of a sound wave?
- wavelength
- frequency and
- amplitude
- How is loudness related to the quantity mentioned above in part (a)?
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.
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.
Name the factors which determine the quality of a note.
How is it possible to detect the filling of a pitcher under a tap by hearing its sound at a distance?
Draw a diagram to show the waveforms of a pure note and a musical note, of the same pitch and same loudness.
