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the equation for the vibration of a stri...

the equation for the vibration of a string fixed both ends vibration in its third harmonic is given by
y = 2 cm sin `[(0.6cm ^(-1))xx ] cos [(500 ps^(-1)t]`

A

24.6 cm

B

12.5 cm

C

20 . 6 cm

D

15. 7 cm

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The correct Answer is:
D
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