Cambridge IGCSE Physics practice

Paper 3 structured question: Refraction of light

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

At a glance

Paper

Marks

Topic

Refraction of light

Exam-style question

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Paper 3Theory (Core)1 marks

Light traveling through different materials.

Description

When light travels from air into water, it bends towards the normal. When it exits back into air, it bends away from the normal.

a
State the effect of light when it enters water from air.
Your answer
Aim for approximately 1 distinct marking point.
[1]

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Paper 3Theory (Core)3 marks

Description

Light travels from air into glass and then back into air. Describe what happens at each interface.

a
Describe the behavior of light at the air-glass interface.
Your answer
Aim for approximately 3 distinct marking points.
[3]