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प्रश्न
Two identical guitars are played by two persons to give notes of the same loudness and pitch. Will they differ in quality? Give reason for your answer.
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उत्तर १
उत्तर २
Because their waveforms are different, yes, their quality is different.
संबंधित प्रश्न
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
The frequency is measured in second.
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(a) the pitch of a note.
(b) the loudness of the sound heard.
(c) the quality of the note.
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- wavelength
- frequency and
- amplitude
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Explain the following and illustrate your answer by drawing appropriate diagram:
Pitch
Name the subjective property of light related to its wavelength.
How do you account for the fact that two strings can be used to give notes of the same pitch and loudness but of different quality?
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?
A 0.6 m long stretched wire is made to vibrate in two different modes as shown in figure
(a)
(b)
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(ii) In which case (a) or (b), is the note louder? Give reasons.
(iii) In which case is the pitch higher? Give reason.
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(ii) What will be the ratio of their frequencies?
