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6.2 Electromagnetic waves

6.2 Electromagnetic waves

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Question 9
a.

What is the term used to describe the distance from the centre of a lens to its principal focus?

[1]
b.

An image formed by a lens can be either real or virtual. State one difference between a real image and a virtual image.

[1]
c.

A scientist uses a lens to examine a tiny specimen.

  • The image height of the specimen is 22.0 mm22.0\text{ mm}22.0 mm.
  • The magnification produced by the lens is 5.05.05.0.

Calculate the actual height of the specimen. Use the equation:

magnification=image heightobject height \text{magnification} = \frac{\text{image height}}{\text{object height}} magnification=object heightimage height​
[2]
Markscheme

6.2 Electromagnetic waves Questions

  1. GCSE
  2. /Physics
  3. /6.2 Electromagnetic waves

29 exam-style questions on AQA GCSE Physics 6.2 Electromagnetic waves, covering 6.2.1 Types of electromagnetic waves, 6.2.2 Properties of electromagnetic waves 1, 6.2.3 Properties of electromagnetic waves 2, 6.2.4 Uses and applications of electromagnetic waves, 6.2.5 Lenses, and 6.2.6 Visible light. Each one has a worked solution and a mark scheme showing where the marks go.

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