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An addition load of 6 kg on a string ma...

An addition load of 6 kg on a string makes its pitch double the fundamental. What was the initial tension in the string ?

A

1 kg

B

2 kg

C

3 kg

D

4 kg

Text Solution

Verified by Experts

The correct Answer is:
B
`n propto sqrtT " and " 2n propto sqrt(T + 6)`
` :. (2n)/n = sqrt((T + 6)/T) :. 4 = (T + 6)/T`
` :. 4T = T + 6 :. T = 2 ` kg
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