Demonstration set for determining Planck's constant
- Recommended age: from 12 years
- Recommended quantity per cabinet: 1 thing
- Recommended level of education:
- — Basic general education (5-9 grades)
- — Secondary general (grades 10 and 11)
- — Additional education
- Important: The product is included in the register of industrial products manufactured in the territory of the Russian Federation, the registry entry number is 10332750
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Included in the list of educational equipment for equipping and modernizing schools (Order No. 838 of the Ministry of Education of the Russian Federation dated November 28.11.2024, XNUMX)
Purpose
The kit is designed to calculate Planck's constant based on measurements of the turn-on voltage of a semiconductor laser and the wavelength of the light emitted by it.
What will the child learn?
The kit will allow the user to perform experiments to determine the wavelength of a semiconductor laser, as well as to determine Planck's constant.
Updates
Allows you to teach the main stages of conducting experimental research, and also allows you to conduct joint research with students.
— A platform on which a semiconductor laser and an electrical circuit are mounted, providing smooth regulation of the supply voltage
— Diffraction grating
— A ruler on which the diffraction spectrum is recorded
— Methodological manual in Russian
- Package
The semiconductor laser is mounted in its own plastic housing, which is secured to the platform in such a way as to allow the beam to rotate in a plane perpendicular to the platform.
Metodicheskoe posobie
The methodological manual contains methodological instructions for performing an experiment, the purpose of which is to determine Planck's constant based on measuring the turn-on voltage of a semiconductor laser and the wavelength of the light emitted by it.
Examples of experiments
— Determination of the wavelength of a semiconductor laser
— Definition of Planck's constant