For an oscillating simple pendulum is the tension in the string constant throughout the oscillation ? If not, when is it (a) the least (b) the greatest?

For an oscillating simple pendulum is the tension in the string consta

1.	For an oscillating simple pendulum is the tension in the string constant throughout the oscillation ? If not, when is it (a) the least (b) the greatest?
Answer» SOLUTION :No. The tension is different at different points of OSCILLATION. The tension at the extreme point is `mg COS theta `where `theta` is the DEFLECTION of the bob from the vertical. So its MAXIMUM value is mg when `theta = 0`i.e, at the equilibrium position. Least value is at the extreme position, where is maximum.