Solving a mechanics problem especially at JEE level is all about getting into right thinking framework. Step 1: Picking a frame of reference. It can be solved from inertial frame of reference or non-nertial...
Point 1: For case for ground pin. Also ground pin is larger that other two pins so that it would be the first to go into the hole and the last to come out of the hole just for sake of safety Point 2:...
An atom consists of an extremely small, positively charged nucleus surrounded by a cloud of negatively charged electrons. Although typically the nucleus is less than one ten-thousandth the size of the...