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प्रश्न
Write true or false for a given statement.
Loudness depends on frequency.
विकल्प
True
False
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उत्तर
False.
Loudness depends on the amplitude.
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संबंधित प्रश्न
Differentiate between a high pitch sound and a low pitch sound.
List four substances which are good absorbers of sound.
What type of wave is represented :
(a) by density-distance graph?
(b) by displacement-distance graph?
How does the frequency of sound given by a stretched string depend on its
- length,
- tension?
Explain meaning of the terms compression and rarefaction in relation to a longitudinal wave.
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(i) Who would hear the sound first: boatman or diver?
(ii) Give a reason for your answer in part (i).
(iii) If sound takes time t to reach the boatman, how much time approximately does it take to reach the diver?
What is the audible range of frequency for human?
On placing your ear close to an iron railing which is tapped some distance away, sound is heard twice. Explain, why?
Match the following.
| 1. | Tuning fork | The point where density of air is maximum |
| 2. | Sound | Maximum displacement from the equilibrium position. |
| 3. | Compressions | The sound whose frequency is greater than 20,000 Hz. |
| 4. | Amplitude | Longitudinal wave. |
| 5. | Ultasonics | Production of sound. |
The speed of sound in air at 0°C is ______.
