Cambridge IGCSE Physics practice

Paper 3 structured question: Radiation

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At a glance

Paper

Marks

Topic

Radiation

Exam-style question

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Paper 3Theory (Core)1 marks

Understanding the properties of surfaces in relation to infrared radiation is essential in thermal physics.

Description

Consider two surfaces: one is dull black and the other is shiny white. Analyze their properties regarding infrared radiation.

a
State the color of the surface that absorbs the most infrared radiation.
Your answer
Aim for approximately 1 distinct marking point.
[1]

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Paper 3Theory (Core)2 marks

Description

A dull black surface and a shiny white surface are exposed to infrared radiation. Discuss their abilities to emit and absorb this radiation.

a
Describe how the dull black surface interacts with infrared radiation compared to the shiny white surface.
Your answer
Aim for approximately 2 distinct marking points.
[2]