Question

What is the Wavelength of light emitted when the electronic in a Hydrogen atom undergoes translation from an energy level with n = 4 to energy level with n =2 ?

________________________

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Answer 1

Answer:

The expression for the wavelength of radiation is,

λ

1

=R(

n

1

2

1

−

n

2

2

1

)

Substitute values in the above expression,

λ

1

=109677×(

2

2

1

−

4

2

1

)=109677×(

4

1

−

16

1

)=109677×(

64

12

)

λ=4.86×10

−5

cm=486×10

−9

m=486nm.

The line belongs to bluish green colour.

Answer 2

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Answer's in the attachment.

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