Hydrogen gas absorbs radiations of wavelength and consequently emit radiations of 6 different wavelengths of which three wavelengths are shorter than . Choose the CORRECT statement(s).

Question

Hydrogen gas absorbs radiations of wavelength $λ_{0}$ and consequently emit radiations of 6 different wavelengths of which three wavelengths are shorter than $λ_{0}$ . Choose the CORRECT statement(s).

Smart Achievers · Accepted Answer

(1,2,3,4)

Since only 6 different wavelengths are excited, therefore highest excited state is $n = 4$ .

Two wavelengths are shorter than $λ_{0}$ . Initially atoms were in excited state $n = 2$ .

Corresponding transitions are 4 → 3, 4 → 2, 4 → 1, 3 → 2, 3 → 1, 2 → 1.

Solution

Q.
Hydrogen gas absorbs radiations of wavelength $λ_{0}$ and consequently emit radiations of 6 different wavelengths of which three wavelengths are shorter than $λ_{0}$ . Choose the CORRECT statement(s).

1 The final energy state of the atom is $n = 4$

2 The initial state of the atom may be $n = 2$

3 There are two transitions in Balmer series

4 There are three transitions belonging to Lyman series

Ans.
(1,2,3,4)

Since only 6 different wavelengths are excited, therefore highest excited state is $n = 4$ .

Two wavelengths are shorter than $λ_{0}$ . Initially atoms were in excited state $n = 2$ .

Corresponding transitions are 4 → 3, 4 → 2, 4 → 1, 3 → 2, 3 → 1, 2 → 1.

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Solution

Q. Hydrogen gas absorbs radiations of wavelength λ0 and consequently emit radiations of 6 different wavelengths of which three wavelengths are shorter than λ0. Choose the CORRECT statement(s).

1 The final energy state of the atom is n=4

2 The initial state of the atom may be n=2