Wavelength of light emitted from second orbitto first orbit in a hydrogen atom is:

Question

Wavelength of light emitted from second orbitto first orbit in a hydrogen atom is: (A)  text6563 overset texto mathop textA  (B)  4102 overset texto mathop textA  (C)  4861 overset texto mathop textA  (D)  1215 overset texto mathop textA

Tardigrade Admin · Accepted Answer

(1/λ )=R( (1/12)-(1/22) ) ⇒ (1/λ )=1.097× 107× (3/4) ∴ λ =1.215× 10-7m=1215 overset texto mathop textA

Q. Wavelength of light emitted from second orbitto first orbit in a hydrogen atom is:

$6563 A o$

$4102 A o$

$4861 A o$

$1215 A o$

$\frac{1}{λ} = R (\frac{1}{1 ^{2}} - \frac{1}{2 ^{2}})$ $\Rightarrow$ $\frac{1}{λ} = 1.097 \times 10^{7} \times \frac{3}{4}$ $∴$ $λ = 1.215 \times 10^{- 7} m = 1215 A o$

Q. Wavelength of light emitted from second orbitto first orbit in a hydrogen atom is:

6563Ao

4102Ao

4861Ao

1215Ao

λ1​=R(121​−221​) ⇒ λ1​=1.097×107×43​ ∴ λ=1.215×10−7m=1215Ao

$6563 A o$

$4102 A o$

$4861 A o$

$1215 A o$

$\frac{1}{λ} = R (\frac{1}{1 ^{2}} - \frac{1}{2 ^{2}})$ $\Rightarrow$ $\frac{1}{λ} = 1.097 \times 10^{7} \times \frac{3}{4}$ $∴$ $λ = 1.215 \times 10^{- 7} m = 1215 A o$