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The maximum tension in the string of an oscillating pendulum m is double of the minimum tension. Find the angular amplitude.
cos-1 (3/4)
Given mass = m
Let angular amplitude be
Velocity be V
Tension in the string is maximum at mean position
Tension is minimum at extreme position
Given,
= 2
From the law of conservation energy
[loss in P.E is equal to gain in K.E]
Substituting in the above equation
2
=