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5.1 Reflection, refraction and lenses

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Question 30
H

The table gives information about three lenses.

LensInformation
Pconverging, focal length 40 cm
Qdiverging, power −4.0 D-4.0\ \mathrm{D}−4.0 D
Rconverging, focal length 20 cm

Use P=1f\displaystyle P=\frac{1}{f}P=f1​, where f f\,f is in metres. Which lists the lenses from greatest magnitude of power to smallest magnitude of power?

[1]
A

R, P, Q

B

R, Q, P

C

Q, R, P

D

P, Q, R

Markscheme

5.1 Reflection, refraction and lenses Questions

  1. GCSE
  2. /Physics
  3. /5.1 Reflection, refraction and lenses

93 exam-style questions on Edexcel GCSE Physics 5.1 Reflection, refraction and lenses, covering 5.1.1 Reflection, refraction and total internal reflection, 5.1.2 Specular and diffuse reflection, 5.1.3 Colour of light: absorption and filters, 5.1.4 Lenses: power, focal length and shape, 5.1.5 Ray diagrams for converging and diverging lenses, and 5.1.6 Real and virtual images. Each one has a worked solution and a mark scheme showing where the marks go.

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