A thin metallic spherical shell of radius r contains a charge Q on its surface. A point charge q1 is placed at the center of the shell and another charge q2 is placed outside the shell at a distance x from the center. The electrostatic forces acting on charges q1 and q2 respectively are:

Which Indian independence movement leader was primarily known for his philosophy and practice of non-violent civil disobedience?

Who gave the call for 'Do or Die' during the Quit India Movement in 1942?

Which of the following revolutionary pairs were imprisoned together in Cellular Jail and faced harsh conditions, contributing significantly to the Indian independence movement?