DP Physics (last assessment 2024)
Question 19N.1.SL.TZ0.24
| Date | November 2019 | Marks available | [Maximum mark: 1] | Reference code | 19N.1.SL.TZ0.24 |
| Level | SL | Paper | 1 | Time zone | TZ0 |
| Command term | Question number | 24 | Adapted from | N/A |
24.
[Maximum mark: 1]
19N.1.SL.TZ0.24
The energy levels for an atom are shown to scale.
A photon of wavelength λ is emitted because of a transition from E3 to E2. Which transition leads to the emission of a photon of longer wavelength?
A. E4 to E1
B. E4 to E3
C. E3 to E1
D. E2 to E1
[1]
Markscheme
B