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Learning objective

Understand that a virtual image is created when diverging rays are traced backward and cannot be projected onto a screen.

Read the explanation, check the common trap, then practise with flashcards and questions.

Exam focus

  • Read the explanation.
  • Check key terms.
  • Practise with linked questions.
Cambridge IGCSE PhysicsSubject contentCore content

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Quick explanation

Understand that a virtual image is created when diverging rays are traced backward and cannot be projected onto a screen

  • This point belongs to Thin lenses, especially Thin lenses outcomes.
  • You need to be able to understand that a virtual image is created when diverging rays are traced backward and cannot be projected onto a screen.
  • The key ideas to know are Know.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

Know

Why it matters

This objective helps connect Thin lenses outcomes to exam-style questions, flashcards, and revision notes for Thin lenses.

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Practice Questions7 linked questions

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Paper 3 structured question: Thin lenses

Paper 3Theory (Core)1 marks

Description

Virtual Image Formation

A virtual image is formed when diverging rays are traced backward. This image cannot be projected onto a screen.

  1. a

    State the condition under which a virtual image is formed.

    Aim for approximately 1 distinct marking point.

    [1]
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