Question

2. Calculate the wavelength of the emitted photon from hydrogen for the transition from ni = 3 to nf = 2. What part of the visible spectrum is this wavelength? Visible wavelengths are: Red  700 - 620 nm, Yellow  620 - 560 nm, Green  560 - 500 nm, Blue 500 - 440 nm, and Violet  440 - 400 nm.

Answer 1

The correct answer is "654.54 nm".

Step-by-step explanation:

According to the question,

⇒
`(1)/(\lambda)= Rh((1)/(n1^2) -(1)/(n2^2) )`

By substituting the values, we get

`=1.1* 10^7((1)/(4) -(1)/(9) )`

`=1.1* 10^7((9-4)/(36) )`

`=1.1* 10^7((5)/(36) )`

`=654.54\ nm`

Thus the above is the right solution.