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Pertain to the following statement and f...

Pertain to the following statement and figure

The figure above shown level diagram of the hydrogen atom. Serveral transition are market as I, II, III, … The diagram is only indicative and not to scale.
The wavelength of the radiation involved in transition II is:

A

`291 nm`

B

`364 nm`

C

`487 nm`

D

`652 nm`

Text Solution

Verified by Experts

The correct Answer is:
C
In transition II
`E_(2)= -3.4 eV, E_(4)= -0.85 eV`
`DeltaE= 2.55 eV`
`DeltaE=(hc)/(lambda)" " rArr lambda=(hc)/(DeltaE)`
`lambda=487 nm`.
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