Cambridge IGCSE Physics practice

Paper 3 structured question: Refraction of light

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Paper

Marks

Topic

Refraction of light

Exam-style question

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Paper 3Theory (Core)3 marks

Understanding light behavior at interfaces.

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]

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Paper 3Theory (Core)1 marks

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]