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प्रश्न
The speed of sound is more in hydrogen than in nitrogen. Is this statement true? Give a reason for your answer.
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उत्तर
Yes. The reason is that the density of hydrogen is less than that of nitrogen and the speed of sound V ∝ 1/√Density, therefore the speed of sound is more in hydrogen than in nitrogen.
संबंधित प्रश्न
Why are sound waves called mechanical waves?
Fill in the blank.
We can hear sounds of frequency in the range of _______
Fig. shows three ways in which a string of length l in an instrument can vibrate.
 |
 |
 |
| (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 change do you expect in the characteristics of a musical sound if
(i) Its frequency is increased,
(ii) Its amplitude is increased?
What is the audible range of frequency for human?
For which range of frequencies, human ears are most sensitive?
When a sound wave travels through air, the air particles ______.
Note is a sound
