DP Physics (first assessment 2025)

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Question 22M.1A.SL.TZ2.28

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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

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