JEE Main & Advanced
Physics
Atomic Physics
JEE PYQ-Atomic Physics
question_answer
A hydrogen atom, initially in the ground state, is excited by absorbing a photon of wavelength. The radius of the atom in the excited state, in terms of Bohr radius will be [JEE Main 11-Jan-2019 Morning]
A)
B)
C)
D)
Correct Answer:
B
Solution :
[b] The energy absorbed by the atom is
So,
The radius of orbit is So, the radius of atom in excited state is