|
The frequency of a source of sound is 50 Hz. How many times does it vibrate in one minute? |
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|
(a) |
50 |
(b) |
300 |
(c) |
3000 |
(d) |
30000 |
|
The frequency of a source of sound is 50 Hz. How many times does it vibrate in one minute? |
|||||||
|
(a) |
50 |
(b) |
300 |
(c) |
3000 |
(d) |
30000 |