JEE Main & Advanced
Physics
NLM, Friction, Circular Motion
Question Bank
Critical Thinking Questions
question_answer
An insect crawls up a hemispherical surface very slowly (see the figure). The coefficient of friction between the insect and the surface is 1/3. If the line joining the centre of the hemispherical surface to the insect makes an angle \[\alpha \]with the vertical, the maximum possible value of \[\alpha \] is given by [IIT-JEE 2001]