Technical data

Young's double slit experiment

Article no: P1195200

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Principle

In 1801 Thomas Young conducted an experiment in which he shone light from a single light source onto two slits, thus creating two beams of light which, when recombined, displayed the interference phenomenon. The classical investigation delivered final proof of the wave nature of light.
In the first experiment the students will become familiar with the principle of Young's experiment on interference. In a second experiment they will ascertain the wavelength λ of red light.

Benefits

Multifunctional light box - All-in-one: Can be used for geometric optics on the table, colour mixing and on an optical bench
Extension with others sets at anytime, no additional light sources needed, recognition value for students

Tasks

How can we use diffraction at a double slit to prove that light interferes? Direct a narrow beam of light onto a double slit and observe what happens. Determine the distance between the virtual light sources and, using this and the interference pattern, determine the wavelength λ of red light.

Scope of delivery

Light box, halogen 12V/20 W	09801-00	1
Bottom with stem for light box	09802-20	1
Optical profile-bench for student experiments, l = 600 mm	08376-00	1
Colour filter set, additive (red, blue, green)	09807-00	1
Lens on slide mount, f=+50mm	09820-01	1
Slide mount for optical bench	09822-00	2
Screen, white, 150x150 mm	09826-00	1
Plate mount for three objects	09830-00	2
Measuring magnifier	09831-00	1
Diaphragm, 4 double slits	08523-00	1
Slit, width adjustable up to 1 mm	11604-07	1
Diaphragm holder, attachable	11604-09	1
PHYWE Power supply, 230 V,DC: 0...12 V, 2 A / AC: 6 V, 12 V, 5 A	13506-93	1
Measuring tape, l = 2 m	09936-00	1