Question

If λ_a, λ_b and λ_c represent the K_α, K_β and L_α transition wavelengths in a hydrogen atom, respectively. Then which of the following is correct?

Options

• `1/lambda_"A"+1/lambda_"B"=1/lambda_"C"`

• `1/lambda_"C"-1/lambda_"B"=1/lambda_"A"`

• `1/lambda_"B"+1/lambda_"C"=1/lambda_"A"`

• `1/lambda_"A"+1/lambda_"C"=1/lambda_"B"`

Answer 1

`bb(1/lambda_"A"+1/lambda_"C"=1/lambda_"B")`

Explanation:

`"E"_("K"_alpha) + "E"_("L"_alpha)` = E_KB

⇒ `1/lambda_"A"+1/lambda_"C"=1/lambda_"B"`