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प्रश्न
What is the noise? Give an example.
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.
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संबंधित प्रश्न
Loudness is determined by the __________ of vibration.
The unit of loudness is _______.
If the amplitude of a wave is doubled, what will be the effect on its loudness?
Name and define the characteristic which enables one to distinguish two sounds of same loudness, but of different frequencies, given by the same instrument.
- 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)?
Give scientific reason for the following:
When a nail is hammering appears to get higher and higher in pitch.
Name the subjective property of light related to its wavelength.
Two musical notes of the same pitch and loudness are played on a violin and a piano. Their waveforms are as shown in the figure below:
If ______ of sound is decreased, its loudness also decreases.
Give a scientific reason.
In earlier times, people used to listen for the arrival of a distant train by putting their ear to the rail.
