engineering recuitment BARC Stipendiary Trainee Category I 2023 Mock Test Chemistry Structure of Atom Atomic Structure
An electron falls from ∞ to stationary state 1 in a hydrogen atom. The wavelength of electron emitted would be:[R = 1.097 × 107 m-1]
1
1.0 × 108 m
2
9.1 × 10-8 nm
3
91 nm
4
1.097 × 10-7 m