A particle in a medium completes 20 vibrations in 2.5 seconds. The frequency of wave is |
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(a) |
20 Hz |
(b) |
200 Hz |
(c) |
50 Hz |
(d) |
8 Hz |
A particle in a medium completes 20 vibrations in 2.5 seconds. The frequency of wave is |
|||||||
(a) |
20 Hz |
(b) |
200 Hz |
(c) |
50 Hz |
(d) |
8 Hz |