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A simple pendulum consisting of a mass M...

A simple pendulum consisting of a mass M attached to a string of length L is released from rest at an angle `alpha`. A pin is located at a distance l below the pivot point. When the pendulum swings down, the string hits the pin as shown in figure. The maximum angle `theta` which the string makes with the vertical after hitting the pin is

A

`cos^(-1) ((L cos alpha + l)/(L + l))`

B

`cos^(-1) ((L cos alpha + l)/(L - l))`

C

`cos^(-1) ((L cos alpha - 1)/(L - l))`

D

`cos^(-1) ((L cos alpha - l)/(L + l))`

Text Solution

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The correct Answer is:
C
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