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Cambridge IGCSE Combined Science practice

Paper 3 structured question: Light

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3

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2

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Topic

Light

Exam-style question

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Paper 3Theory (Core)2 marks

Refraction of light is a common phenomenon observed in daily life.

Description

Refraction Example

When a straw is placed in a glass of water, it appears bent at the surface of the water.

  1. a

    Explain why the straw appears bent when viewed from the side of the glass.

    Aim for approximately 2 distinct marking points.

    [2]

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Paper 3 structured question: Light

Paper 3Theory (Core)1 marks

Description

Optical Devices

Lenses are used in glasses and cameras to focus light.

  1. a

    Define the term 'refraction'.

    Aim for approximately 1 distinct marking point.

    [1]