Home /
Physics /
Physics Experiments /
Optics /
Geometrical optics /
Laws of imaging /
Determining the focal lengths at collecting lenses using Bessel’s method /
Determining the focal lengths at collecting lenses using Bessel’s method

Determining the focal lengths at collecting lenses using Bessel’s method

VP5.1.2.3

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

In the Bessel method, experiment P5.1.2.3, the object and the observation screen are set up at a fixed overall distance s apart. Between these points there are two lens positions x₁ and x₂ at which a sharply focused image of the object is produced on the observation screen. From the lens laws, we can derive the following relationship for the focal length

Components of equipment sets

1	45060 4	Lamp housing with cable
1	450511 8	Bulbs 6 V/5 A/30 W, E14, set of 2
1	46020 4	Condenser with diaphragm holder
1	521210 8	Transformer 6/12 V
1	46002 4	Lens in frame, f=50 mm
1	46003 4	Lens in frame, f=100 mm
1	46166 4	Objects for investigating images, pair
1	44153 8	Screen, translucent
1	460310 8	Optical bench, S1 profile, 1 m
2	460311 4	Clamp rider with clamp 45/65
1	460312 4	Clamp rider with clamp 45/35
1	31178 4	Tape measure 2 m / 1 mm

Experiment Instructions

PDF (Experiment description)

P5.1.2.3 Determining the focal lengths at collecting lenses using Bessels method

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

Determining the focal lengths at collecting lenses using Bessel’s method

Description

Components of equipment sets

Experiment Instructions

Contact Us