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A wave moves with speed 300 m//s on a wi...

A wave moves with speed `300 m//s` on a wire which is under a tension of `500 N`. Find how much tension must be changed to increase the speed to `312 m//s`?

A

30 N

B

40 N

C

35 N

D

50 N

Text Solution

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The correct Answer is:
B
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