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A wave propagates on a string in positiv...

A wave propagates on a string in positive x-direction with a speed of 40 cm/s. The shape of string at t = 2 s is y=`10 cos x/5` where x and y are in centimeter. The wave equation is

A

`y = 10 cos(x/5 -8t)`

B

`y = 10 sin(x/5 -8t)`

C

`y=10 cos(x/5 -8t + 16)`

D

`y=10 sin(x/5 - 8t + 16)`

Text Solution

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The correct Answer is:
C
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