Skip to content
BvunzoHub

Menu

Get full accessSign in

Cambridge AS & A Level Physics

7.4Electromagnetic spectrum

Electromagnetic spectrum in Cambridge AS & A Level Physics: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic22 practice questions1 lesson
Practise this topicAll Physics topics

Learning objectives

What the syllabus expects you to be able to do.

  1. 7.4.1State that all electromagnetic waves are transverse and travel at c in free space.
  2. 7.4.2Recall approximate wavelength ranges of the main regions from radio to gamma.
  3. 7.4.3Recall that free-space wavelengths of 400-700 nm are visible.

Lessons

  • The electromagnetic spectrum: regions, sources and uses

    35 min

    Full access

Join to read every lesson, or see what Full access includes.

Sample question

A sample question on this topic. Answer it, check it, then read the worked answer.

Electromagnetic spectrum: sample question

1 mark

Which is the approximate wavelength of X-rays used in medical imaging?

Choose one answer

Turn Electromagnetic spectrum into a strength.

Practise with instant marking, see your mastery grow and get a study plan built around your exam date.

Start learningPhysics topics