Apparatus studying the photoelectric effect

Description:

The apparatus for studying the photoelectric effect is a useful tool for introducing the student to the study of quantum mechanics. The instrument essentially consists of two parts, the phototube and the control unit containing the voltmeter and nanoamperometer for determining Planck's constant and studying the photoelectric effect. Three LED diodes with a known average wavelength are supplied, which are used as individual monochromatic light sources. The intensity of the light emitted can vary from 0 to 100%. The photoelectric effect is the physical phenomenon characterised by the emission of electrons from a usually metallic surface. With this device it is possible to verify the relationship between the energy of the emitted electrons and the wavelength of the incident radiation. In particular, it is possible to derive an approximate value of Planck's constant using Einstein's explanation of the photoelectric effect.

Technical specifications
Supply voltage: 24 V DC
4-digit voltmeter, sensitivity: