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5.4 Uses and dangers of EM radiation

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Question 41
H

A fluorescent security mark absorbs ultraviolet radiation and emits visible light. Which description of the energy transfers is correct?

[1]
A

Absorption raises atomic energy; emission lowers atomic energy.

B

Absorption lowers atomic energy; emission raises atomic energy.

C

Absorption raises nuclear energy; emission splits the nuclei.

D

Absorption lowers nuclear energy; emission combines the nuclei.

Markscheme

5.4 Uses and dangers of EM radiation Questions

  1. GCSE
  2. /Physics
  3. /5.4 Uses and dangers of EM radiation

104 exam-style questions on Edexcel GCSE Physics 5.4 Uses and dangers of EM radiation, covering 5.4.1 Dangers of electromagnetic radiation, 5.4.2 Uses of electromagnetic radiation, 5.4.3 Radio waves and oscillations in circuits, and 5.4.4 Changes in atoms and nuclei generating radiation. Each one has a worked solution and a mark scheme showing where the marks go.

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