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O-LevelPhysicsLight5054/12 · Oct/Nov 2020 · Q251 Mark

Applications use different components of the electromagnetic spectrum. Which shows correct applications for X-rays, ultraviolet light and microwaves?

Amobile phone, fluorescent tube, intruder alarm
Bkilling cancerous cells, sterilising surgical instruments, satellite television
Cmedical imaging, television controller, sunbed
Dsterilising surgical instruments, television controller, detecting cracks in metal

✓ Correct answer

B: killing cancerous cells, sterilising surgical instruments, satellite television

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About this question

Topic
Light, O-Level Physics (syllabus 5054). Multiple choice, 1 mark.
Source
O-Level Physics, Oct/Nov 2020 Paper 1 Variant 2, question 25.

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