Question

Find out the wavelength of the photon emitted when electron moves from n=4to n=2 in a hydrogen atom ​

Answer 1

Answer:

Let wavelength emitted during the transaction from  n=4 to  n=2 be  λ4→2

Using : λ4→21 =λ4→11− λ2→11

∴    λ4→21 =75.631− 94.541          

⟹  λ4→2=380 nm

Explanation:

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