Quantum Jump that produces an infrared line?

[MarilizeLegajuanas]

1. A certain type of atom has only four energy levels, as shown in the diagram. The "spectral lines" produces by this element are all visible, except for one infrared line. The quantum jump that produces the infrared line is:
(see attached file)

A) state 4 to 3.B) state 4 to 1.C) state 2 to 1.

D) state 3 to 4.

Homework Equations

N/A

The Attempt at a Solution

I don't understand how to tackle this question. Does this have to do with wavelength?

 

[mfb]

Does this have to do with wavelength?

The difference between infrared and visible is the wavelength range.

What does the diagram show? In particular, what are the lines and what is the vertical axis?

What other important property is the wavelength related to?

 

[lekh2003]

1. A certain type of atom has only four energy levels, as shown in the diagram. The "spectral lines" produces by this element are all visible, except for one infrared line. The quantum jump that produces the infrared line is:
(see attached file)

A) state 4 to 3.B) state 4 to 1.C) state 2 to 1.

D) state 3 to 4.

Homework Equations

N/A

The Attempt at a Solution

I don't understand how to tackle this question. Does this have to do with wavelength?

First recall what you must have learned in class.

This is a very straight forward question if you just think about what happens when there is an electron transition or "quantum jump".

What happens when electrons jump between energy states?