Question

A simple pendulum with length l and bob of mass m is executing S.H.M of small amplitude a. The expression for maximum tension in the string will be

• A. mg[1+(a/l)
• B. mg [1+ (a²/l²)]
• C. mg
• D. mg [1+(a/l)]²

Answer 1

The correct option is B

mg [1+ (a²/l²)]

The tension in the string would be maximum when bob will be passing mean position.