The wave function for Be3+ in a certain state is given by ψ = N e-(4r/a0), where N is the normalization constant, r is the distance of the electron from the nucleus, and a0 is the Bohr radius. The most probable distance of the electron from the nucleus in this state is:

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?