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A string of 7 m length has a mass of 0.035 kg. If tension in the string is 60.5 N, then speed of a wave on the string is
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- 77 m/s
- 102 m/s
- )110 m/s
- 165 m/s
Correct Option: C
Given : Length (l) = 7 m
Mass (M) = 0.035 kg and tension (T) = 60.5 N.
Therefore, mass of string per unit length (m) =
| = 0.005 kg/m | ||
| 7 |
speed of wave
| = √ | √ | = 110 m/s | ||
| m | 0.005 |
