Cambridge IGCSE Combined Science practice

Paper 3 structured question: Light

Try the question first, then check the answer and practise the same topic again.

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Paper

Marks

Topic

Light

Exam-style question

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Paper 3Theory (Core)4 marks

Understanding the principles of light refraction and dispersion is essential in optics.

Description

A glass prism is used to demonstrate the dispersion of light.

a
Describe the process of light dispersion through a prism.
Your answer
Aim for approximately 4 distinct marking points.
[4]

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Paper 3Theory (Core)3 marks

Description

When white light passes through a glass prism, it separates into different colors due to refraction.

a
Explain how the dispersion of light occurs when white light passes through a prism.
Your answer
Aim for approximately 3 distinct marking points.
[3]