Two dielectric slabs having dielectric constants K1 and K2 and thicknesses d4 and 3d4 are inserted between the plates of a capacitor of plate separation d and area A. The net capacitance of the system is (ε0 is the permittivity of free space):

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?