The normalized ground state wavefunction of a hydrogen atom is given by ψ(r) = 1√4π 2a3/2 e-r/a, where a is the Bohr radius and r is the distance of the electron from the nucleus located at the origin. If the expectation value ⟨1r2⟩ is (na)2, then the value of n is:

Which of the following events is considered a major turning point that fueled Indian nationalism during British rule due to its brutal nature and widespread condemnation?

Which of the following events is considered the first major peasant uprising against the British in India?

Who led the Non-Cooperation Movement in India?