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A transverse periodic wave on a string w...

A transverse periodic wave on a string with a linear mass density of 0.200 kg/m is described by the following equation `y=0.05 sin (420t-21.0 x)`
where x and y are in metres and t is in seconds.The tension in the string is equal to :

A

32 N

B

42 N

C

66 N

D

80 N

Text Solution

Verified by Experts

`V=sqrt(T/lambda)=omega/k rArr T=(omega^2lambda)/k^2=(420/21)^2xx0.2=80 N`
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