Technical data

What is the groove spacing on a CD?

Article no: P1416201

Principle

The setup of the experiment is uncritical and provides in general good and reliable measured results.

Benefits

Specified for the requirements of the german final secondary-school examinations
Especially for secondary schools
Quantum and wave optics in a student experiment

Tasks

What is the distance between the grooves on a CD? A CD made with grooves similar to a record. In contrast to the record the distances between the grooves of a CD are so small that they can hardly be seen with the naked eye. In this experiment you will learn about a method to determine the distance between the grooves.

Scope of delivery

Support base, variable	02001-00	1
Stand rods, stainless steel, various sizes	02037-00	2
Slide mount without angle scale	09851-02	1
Diaphragm holder, attachable	11604-09	1
Lens on slide mount, f=+100mm	09820-02	1
Lens on slide mount, f=+300mm	09820-04	1
LED - red, with series resistor and 4 mm plugs	09852-20	1
Stray light tube for LED, Di = 8 mm, l = 40 mm	09852-01	1
Measuring tape, l = 2 m	09936-00	1
PHYWE Power supply, 230 V, DC: 0...12 V, 2 A / AC: 6 V, 12 V, 5 A	13506-93	1
Connecting cable, 32 A, red, various lengths	07362-01	1
Connecting cable, 32 A, blue, various lengths	07362-04	1