Question

Suppose that in any Bohr atom or ion orbits are only in even number like 2, 4, 6……. The maximum wavelength of radiation emitted in the visible region of gydrogen spectrum should be,
A. `4//R`
B. `R//4`
C. `36//5R`
D. `16//3R`

Answer 1

Correct Answer - D
`E alpha (1)/(lambda)`
Maximum wavelength radiation means minimum energy radiation which is emitted when transition occurs from `4 rarr 2`.
`(1)/(lambda) = R((1)/(4) - (1)/(16))`