An atomic emission spectrum of hydrogen shows three wavelengths: 121.5 nm,102.6 nm, and 97.23 nm

Assign these wavelengths to transitions in the hydrogen atom.

Drag the appropriate items to their respective bins.

We have that wavelengths to transitions in the hydrogen atom.

From the question we are told that

121.5 nm,102.6 nm, and 97.23 nm

Generally the equation for wavelength  is mathematically given as

Therefore

For nf=2,ni=1

For ni=1,nf=3

For ni=1,nf=4

Therefore

The Correct slots are

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a