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प्रश्न
If the amplitude of vibration is large, sound is feeble.
पर्याय
True
False
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उत्तर
This statement is False.
Explanation:
The loudness of a sound is proportional to the square of the amplitude of its vibration. When the amplitude of the vibration is large, the sound produced is loud. When the amplitude is small, the sound produced is feeble.
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संबंधित प्रश्न
Name the factor that determines Quality of the note
Two musical notes of the same pitch and same loudness are played on two different instruments. Their wave patterns are as shown in figure.
How do they differ in
(a) loudness,
(b) pitch and
(c) quality
Name the characteristic of the sound affected due to a change in its
(a) amplitude (b) waveform (c) 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.
Two waves of the same pitch have amplitudes in the ratio 1 : 3. What will be the ratio of their :
(i) intensities and
(ii) frequencies
Name the factors which determine the quality of a note.
What is meant by the ‘pitch’ of a note? Does it depend on the loudness or ‘quality’ of the ‘note’? How is pitch ‘related’ with frequency?
What is meant by the ‘loudness’ of a sound? How is it related to the intensity?
Give a scientific reason.
We can hear the movement of a mosquito’s wings but we cannot hear the movement of our hands.
