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5.1 Reflection, refraction and lenses

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Question 13

A quality-control technician tests four converging lenses for an optical inspection instrument. The table gives the focal length measured when rays parallel to the principal axis pass through each lens.

LensFocal length in m
W0.24
X0.09
Y0.15
Z0.30

Which lens bends the parallel rays most strongly?

[1]
A

Lens X

B

Lens Z

C

Lens Y

D

Lens W

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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