Home /
Determining the velocity of light by means of the rotating-mirror method according to Foucault and Michelson - Measuring the image shift as a function of the rotational speed of the mirror

Determining the velocity of light by means of the rotating-mirror method according to Foucault and Michelson - Measuring the image shift as a function of the rotational speed of the mirror

VP5.6.1.1

This product is classified as a dangerous good and is not available for online purchase.

For ordering the dangerous good or other information please contact our customer service center.
This experiment/set up contains dangerous goods.
These are not available for online purchase.
You may order the experiment/set up without the dangerous goods.

For ordering the dangerous good or other information please contact our customer service center.
Email: webshopuk@ld-didactic.de
Telephone:+49 (0) 22 33 / 604 – 319
Go to contact form

Request an offer

Name *

Email *

Thank you for your inquiry. We will get back to you as soon as possible.

Description

Once the rotary mirror is turning at a high frequency ν, the shift Δx of the image on the scale is observed. In the period

which the light requires to travel to the rotary mirror and back to the end mirror, the rotary mirror turns by the angle

Thus, the image shift is

The velocity of light can then be calculated as

To determine the velocity of light in experiment P5.6.1.1, the image shift is measured as a function of the speed of the mirror.

Components of equipment sets

1	47640 4	Rotary mirror
1	471832	He-Ne laser, unpolarised
1	46320	Front-silvered mirror
1	46012	Lens in frame, f=5 m
1	47188 8	Beam splitter
1	46022 4	Holder with spring clips
1	311091 4	Glass scale 50 mm
1	52140 8	Variable transformer, 0...250 V
1	575302	Oscilloscope 30 MHz, digital, PT1265
1	559921 8	Semiconductor detector
1	50102 8	BNC cable, 1 m
1	50110 4	BNC adapter, straight
1	30041 4	Stand rod, 25 cm, 12 mm Ø
1	30042 4	Stand rod, 47 cm, 12 mm diam.
1	30044 4	Stand rod, 100 cm, 12 mm diam.
1	30001 4	Stand base, V-shaped, large
4	30002 4	Stand base, V-shaped, small
1	30011 4	Saddle base
2	30101 4	Leybold multiclamp
1	30109 4	Bosshead S
1	31102 4	Metal rule, 1 m

Experiment Instructions

PDF (Experiment description)

P5.6.1.1 Determining the velocity of light by means of the rotating-mirror method according to Foucault and Michelson - Measuring the image shift as a function of the rotational speed of the mirror

Print page

Technical Service & Support:

Online Service Portal
Do you have any questions or suggestions regarding our devices, products, experiments, equipment sets or about our software? You need spare parts? FORM

Repair Service
You would like to register a repair? FORM

Europe

For European distributors, please visit: European distributors

Worldwide requests

Click here for our contact form.

Determining the velocity of light by means of the rotating-mirror method according to Foucault and Michelson - Measuring the image shift as a function of the rotational speed of the mirror

Description

Components of equipment sets

Experiment Instructions

Contact Us