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प्रश्न
The sound waves are reflected from an obstacle into the same medium from which they were incident. Which of the following changes?
पर्याय
speed
frequency
wavelength
none of these
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उत्तर
none of these
Hint:
If there is the same medium of a reflected obstacle is used, there is no change in speed, frequency, and wavelength of the sound.
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संबंधित प्रश्न
To detect the obstacles in their path, bats produce ______.
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In the region of compression or rarefaction, in a longitudinal wave, the physical quantity which does not change is:
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| 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. |
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