DP Physics (first assessment 2025)
Question 22M.1A.SL.TZ2.28
Date | May 2022 | Marks available | [Maximum mark: 1] | Reference code | 22M.1A.SL.TZ2.28 |
Level | SL | Paper | 1A | Time zone | TZ2 |
Command term | Question number | 28 | Adapted from | N/A |
28.
[Maximum mark: 1]
22M.1A.SL.TZ2.28
The age of the Earth is about 4.5 × 109 years.
What area of physics provides experimental evidence for this conclusion?
A. Newtonian mechanics
B. Optics
C. Radioactivity
D. Electromagnetism
[1]
Markscheme
C