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प्रश्न
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उत्तर
The lowest frequency audible to human ear is 20 Hz and the highest frequency audible to human ear is 20,000 Hz.
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संबंधित प्रश्न
A person is listening to a tone of 500 Hz sitting at a distance of 450 m from the source of the sound. What is the time interval between successive compressions from the source?
Name the two characteristics of sound which differentiate two sounds from each other.
State the factors on which the pitch of a sound depends.
What is the difference between a compression and a rarefaction in a sound wave? Illustrate your answer with a sketch.
Fig. shows three ways in which a string of length l in an instrument can vibrate.
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| (i) | (ii) | (iii) |
- Which of the diagram shows the principle note?
- Which vibration has the frequency four times that of the first?
- Which vibration is of the longest wavelength?
- What is the ratio of the frequency of the vibration in (i) and (ii)?
What is the effect of temperature and pressure on the speed of sound in a gas?
Lightning can be seen the moment it occurs. Paheli observes lightning in her area. She hears the sound 5 s after she observed lightning. How far is she from the place where lightning occurs? (speed of sound = 330 m/s).
