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प्रश्न
A person hearing at one end of a long metal bar hears two distinct sounds when the other end is struck with a stone. Explain, giving scientific reasons
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उत्तर
A person hearing at one end of the long metal bar hears two distinct sounds when the other end is struck with a stone because the sound comes from the metal bar as well as from the air. The sound travels faster in solids than air. So, the first sound comes from metal bar hitting and then from the air.
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संबंधित प्रश्न
What is loudness of sound? What factors does it depend on?
What is the vacuum? Explain why, sound cannot travel through vacuum?
What is sound? What type of waves are sound wave in air?
Complete the following sentences :
Sound cannot travel through __________, but it requires a ___________.
Arrange the speeds of sound in gases, solids, and liquids in ascending order.
Select the correct option:
A part of longitudinal wave in which particles of the medium are farther away than the normal particles is called :
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. |
What types of medium are required for sound to travel?
