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3.2.3a Converging and diverging lenses

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Question 26

An object is placed in front of a thin converging lens of focal length fff. A real image is formed on a screen on the opposite side of the lens.

To locate the image, two rays are traced from the top of the object:

  • Ray 1 is initially parallel to the principal axis.
  • Ray 2 is directed towards the optical center of the lens.

Which of the following correctly describes the path of these two rays after passing through the lens?

A

Ray 1 refracts and passes through the principal axis at a distance of 2f2f2f from the lens, while Ray 2 passes through the optical center and continues in a straight line without bending.

B

Ray 1 refracts and passes through the principal axis at a distance of 2f2f2f from the lens, while Ray 2 bends at the lens and does not continue in a straight line.

C

Ray 1 refracts and passes through the principal axis at a distance of fff from the lens, while Ray 2 passes through the optical center and continues in a straight line without bending.

D

Ray 1 refracts and passes through the principal axis at a distance of fff from the lens, while Ray 2 bends at the optical center and does not continue in a straight line.

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3.2.3a Converging and diverging lenses Questions

  1. IGCSE
  2. /Physics
  3. /3.2.3a Converging and diverging lenses

56 exam-style questions on CIE IGCSE Physics 3.2.3a Converging and diverging lenses. Each one has a worked solution and a mark scheme showing where the marks go.

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