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Deviating prisms

Product No: P1065100

Principle

The goal of this experiment is that the students become acquainted with special cases of the refraction of light at a prism which are important in technical applications (optical instrument construction). With the investigation and explanation of the light path as a function of the position of the prism in relation to the light source, knowledge about the laws of reflection and refraction, as well as total reflection, are strengthened. In the first part of the experiment, the normal refraction at a prism is investigated (as a revision exercise); whereas in the second and third parts of the experiment the possibility of employing a right-angled prism at 90° or 180° to reverse the incident light is recognised and understood.
It can also be recommended to take advantage of group work: each group investigates the path of light with a different position of the prism and, at the end of the experiment, the results and the conclusions are collected for a total result.

Task

Not all prisms are the same. Investigate the course of a light beam on emergence from a right-angled prism when the light - falls at an angle to the hypotenuse - hits a cathetus at right angles - is incident to the hypotenuse at right angles.

Materiallist (Excerpt)	Product	Amount
Power supply 0...12 V DC/ 6 V, 12 V AC, 230 V	13505-93	1
Light box, halogen 12V/20 W	09801-00	1
Block, rectangular triangle	09810-03	1

Literature for this article als follows

Title	Product	Language
interTESS DVD Physik	01050-00
interTESS DVD Physik, Optik & Wellenoptik	01053-00
interTESS DVD, vollständige Version mit allen Versuchen Physik, Chemie, Biologie, Applied Sciences	01100-00
TESS advanced Physik Handbuch Optik	01164-01	DEU
TESS advanced Physics manual Optics	01164-02	ENG
TESS advanced Physique manual Optique	01164-03	FRA
TESS advanced Física manual Optica	01164-04	ESP