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Electromagnetic spectrum

Electromagnetic spectrum

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Question 155

The two applications described use different types of electromagnetic waves:

  • A device used for detecting forged banknotes
  • A system used for satellite television transmissions

Which types of electromagnetic waves are used in these applications?

A

Detecting forged banknotes: Infrared; Satellite television: Microwaves

B

Detecting forged banknotes: Ultraviolet; Satellite television: Radio waves

C

Detecting forged banknotes: Ultraviolet; Satellite television: Microwaves

D

Detecting forged banknotes: X-rays; Satellite television: Radio waves

Markscheme

Electromagnetic spectrum Questions

  1. IGCSE
  2. /Physics
  3. /Electromagnetic spectrum

198 exam-style questions on CIE IGCSE Physics Electromagnetic spectrum, covering Electromagnetic spectrum. Each one has a worked solution and a mark scheme showing where the marks go.

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