The electron in a hydrogen atom makes a transition from a lower energy state to a higher energy state by absorbing a photon of

Question

The electron in a hydrogen atom makes a transition from a lower energy state to a higher energy state by absorbing a photon of energy 2 55 eV If the radius of the orbit which the electron was initially occupying was r the radius of its final orbit is A 2r B 4r C 16 9 r D 9 4 r

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