Question

The energy levels with transitions for the atom are shown. The transitions corresponding to emission of radiation of maximum and minimum wavelength are respectively.

Options

• B, C

• A, C

• C, D

• A, D

Answer 1

A, D

Explanation:

As, we know that the difference of energy between two level is equal to the energy of photon.

`Delta"E" = "hv" = "hc"/lambda => lambda = "hc"/(Delta "E")`

or  `lambda prop 1/(Delta "E")`

The value of ΔE is minimum for A, so radiation corresponding to A have maximum wavelength and value of Δ E is maximum for D, so radiation corresponding to D have minimum wavelength.