The charge density of the electron cloud of a hydrogen atom is given by ρ(r) = -e8πa3 exp(-r/a), where a is a characteristic length. The potential energy due to the electrostatic interaction between the proton (located at the origin) and this electron cloud is given by:

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?