School of Physics Lecture Demonstration Manual

Hc-3 Black Body Box

Published: Monday 13 March 2006 - Updated: Monday 28 March 2011

Aim

To illustrate an approximate black body absorber.

Apparatus

Prepared box as in diagram

Diagrams

Click on pictures to enlarge.

Blackbody box closed

Blackbody box open

Description

A light tight box has two identical holes in one face. One of the holes is backed by a black piece of paper, the other with no backing appears much darker. The box may be opened to show that the inside has a white coating.

Safety notes

Maintenance 

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