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प्रश्न
You recognize your friend by hearing his voice on a telephone. Explain.
उत्तर
We can recognize our friend by hearing his voice on a telephone due to quality of sound and pitch of sound.
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संबंधित प्रश्न
What are ultrasonics? Can you hear the ultrasonic sound?
Name the two characteristics of sound which differentiate two sounds from each other.
Fig. shows three ways in which a string of length l in an instrument can vibrate.
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 |
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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)?
Explain meaning of the terms compression and rarefaction in relation to a longitudinal wave.
Distinguish between light and sound waves. What are the consequences of the large difference in the speed of sound and that of light? Briefly explain them.
Sound waves travel very fast in
A list of mediums is given below
- Wood
- Water
- Air
- Vacuum
In which of these mediums can sound travel?
Which of the following statements are correct?
- Sound is produced by vibrations.
- Sound requires a medium for propagation.
- Light and sound both require a medium for propagation.
- Sound travels slower than light.
