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The vibration of a string fixed at both ...

The vibration of a string fixed at both ends are described by `Y= 2 sin (pi x) sin (100 pit)` where Y is in mm, x is in cm, t in sec then

A

Maximum displacement of the particle at x = 1/6 cm would be 1mm

B

velocity of the particle at x = 1/6 cm at time t = 1/600 sec will be `157 sqrt(3) mm//s`

C

If the length of the string be 10 cm, number of loop in it would be 5

D

None of these

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