Question

Of the following transitions in hydrogen atom, the one which gives an absorption line of lowest frequency is

Answer 1

correct question :-

Of the following transitions in hydrogen atom, the one which gives an absorption line of lowest frequency is

(A) n = 1 to n = 2

(B) n = 3 to n = 8 

(C) n = 2 to n = 1

(D) n = 8 to n = 3

answer :-

Option (B)

(B) n = 3 to n = 8 

Explanation:-

Absorption line in the spectra arise when energy is absorbed i.e., electron shifts from lower to higher orbit, out of a & b, b will have the lowest frequency as this falls in the Paschen series.

Answer 2

Answer:

Of the following transitions in hydrogen atom, the one which gives an absorption line of lowest frequency is n = 3 to n = 8. The Absorption line in spectra arise when the energy is absorbed i.e. the electron shifts from the lower to the higher orbit, out of a & b, b would have the lowest frequency as it falls in the Paschen series.