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प्रश्न
Fill in the blank.
The pitch of a sound depends on its ________.
Pitch of a sound depends on the _____ vibration.
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उत्तर १
The pitch of a sound depends on its frequency.
उत्तर २
Pitch of a sound depends on the frequency of the vibration.
संबंधित प्रश्न
Write true or false for a given statement.
Loudness depends on frequency.
Select the correct alternative :
We can hear sound of frequency
Define the term intensity of a sound wave. State the unit in which it is measured.
Distinguish between loudness and intensity of sound.
Are sound waves longitudinal or transverse?
The flash of a gun is seen by a man 3 seconds before the sound is heard. Calculate the distance of the gun from the man (Speed of sound in air is 332 m/s).
Which of the following frequency of sound can be generated by a vibrating simple pendulum as well as by the vibrating vocal cords of a rhinoceros ?
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)?
Define the term amplitude of a wave. Write its S.I. unit.
Draw a displacement-distance graph of a wave and mark on it, the amplitude of wave by the letter 'a' and wavelength of wave by the letter λ.
The heart of a man beats 75 times a minute. What is its (a) frequency and (b) time period?
For which range of frequencies, human ears are most sensitive?
Sound is generated by the rhythmic ______ of an object.
What is the value of sound of room temperature?
Can you hear the sound produced due to the vibrations of second's pendulum?
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.
The amplitude of the sound wave decides its
Match the following.
| Ultrasonics | Frequency below 20Hz |
| Speed of sound in air | Needs material medium |
| Infrasonics | 330ms-1 |
| Sound propagation | Frequency more than 20000 Hz |
Which of the following vibrates when a musical note is produced by the cymbals in a orchestra?
Sound can travel through solids, gases, liquids, and even vacuum.
