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Cambridge IGCSE Combined Science practice

Paper 3 structured question: Light

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Light

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Paper 3Theory (Core)2 marks

Application of lens principles in optics.

Description

Light Behavior with Lenses

Consider a thin converging lens focusing light from a distant source.

  1. a

    Describe how a thin converging lens affects light rays from a distant object.

    Aim for approximately 2 distinct marking points.

    [2]

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Paper 3 structured question: Light

Paper 3Theory (Core)3 marks

Description

Thin Converging Lens

A thin converging lens is used to focus light rays from a distant object.

  1. a

    Explain the effect of a thin converging lens on parallel light rays.

    Aim for approximately 3 distinct marking points.

    [3]