Q. Assertion (A) A ladder is more apt to slip, when you are high up on it, then when you just begin to climb.
Reason (R) At the high up on a ladder, the torque is large and on climbing up the torque is small.

 1402  222 AIIMSAIIMS 2016 Report Error

Solution:

When a person is high up on the ladder, then a large torque is produced due to his weight about the point of contact between the ladder and the floor. Whereas when he starts climbing up, the torque is small. Due to this reason, the ladder is more opt to slip, when one is high up on it.