99 Percentile Qs Bank for JEE MainChemistryStructure of Atom
The ratio of the difference in energy between the first and second Bohr orbits to that between the second and third orbits is
Options
- A5 27
- B27 5
- C4 9
- D9 4
Correct answer
B. 27 5
Step-by-step solution
The difference in energy between the first and second Bohr orbit is aligned & E₂-E₁=-13.6 z^2 ( 1 n₂^2 - 1 n₁^2 ) & =-13.6 (1)^2 ( 1 2^2 - 1 1^2 ) aligned =-13.6 (- 3 4 )=13.6 3 4 ...(i) The difference in energy between the second and third Bohr orbit is E₃-E₂=-13.6 z^2 ( 1 n₃^2 - 1 n₂^2 )=-13.6 (1)^2 ( 1 3^2 - 1 2^2 )=-13.6 ( -5 36 )=13.6 5 36 ...(ii) Ratio = E₂-E₁ E₃-E₂ = 3 4 5 36 = 3 4 36 5 = 27 5