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प्रश्न
What does the intensity of sound depend upon?
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उत्तर
The intensity of sound depends on the amplitude of vibration of the sound. It is proportional to the square of the amplitude of the vibration of the sound.
संबंधित प्रश्न
Shrillness of a sound is determined by the ______ of vibration.
What do you understand by the loudness of sound?
Define the following term:
Frequency
It is observed that during march-past we hear a base drum distinctly from a distance compared to the side drums.
(i) Name the characteristics of sound associated with the above obervation.
(ii) Give a reason for the above observation.
Explain the following and illustrate your answer by drawing appropriate diagram:
Pitch
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?
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:
A 0.6 m long stretched wire is made to vibrate in two different modes as shown in figure
(a)
(b)
(i) If the frequency of the note produced in (b) is n, what is the frequency in case (a)?
(ii) In which case (a) or (b), is the note louder? Give reasons.
(iii) In which case is the pitch higher? Give reason.
