A small spherical steel ball is placed a little away from

Last updated: 6/9/2023

A small spherical steel ball is placed a little away from the centre of large concave mirror whose radius of curvature is 2 5 cm When ball is released it begins to oscillate about centre The period of oscillation is g 10 ms 1 3 14 s 2 5 23 s 3 1 21 s 4 4 31 s