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प्रश्न
Select the correct option:
A longitudinal wave consists of:
विकल्प
crest and trough in the medium
compression and rarefaction in the medium
both crest and trough in the medium and compression and rarefaction in the medium
neither crest and trough in the medium and compression and rarefaction in the medium
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उत्तर
compression and rarefaction in the medium
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संबंधित प्रश्न
Which characteristics of the sound helps you to identify your friend by his voice while sitting with others in a dark room?
Distinguish between compression and rarefaction.
Draw displacement-time graph of a wave and show on it the amplitude and time period of wave.
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.
Name the factors on which the speed of sound depends.
The sound waves travel faster ______.
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. |
Vibrations in a body produce ______.
Assertion: The sound of thunder is heard a little later than the flash of light.
Reason: The speed of sound is much less than the speed of light.
Distinguish between compression and rarefactions.
