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प्रश्न
The wavelength of the vibrations produced on the surface of water is 2 cm. If the wave velocity is 16 ms-1, calculate:
- no. of waves produced in one second
- time required to produce one wave.
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उत्तर
wavelength = λ = 2 cm = 0.02 m
Wave velocity = v = 16 ms-1
Frequency = f = ?
We know = v = λf
f = `"v"/lambda`
f = `16/0.02` = 800 Hz
⇒ 800 waves are produced in one second.
Time period = T = `1/"f"`
T = `1/800`
T = 0.00125s
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संबंधित प्रश्न
| Column A | Column B |
| (a) Vibrations cause | (1) absorb sound |
| (b) A shriller sound is | (2) second |
| (c) Unit of frequency | (3) sound |
| (d) Unit of time period | (4) of high pitch |
| (e) Curtains | (5) hertz |
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