This apparatus still uses the photoelectric effect to determine Planck's constant, but the light source consists of five replaceable LEDs. The LEDs are marked with their wavelength and are mounted in a black plastic housing which ensures easy optical connection to the photocell, without risk of ambient light disturbing the measurements. This model yields very precise results.
The apparatus includes a measurement amplifier and is supplied with a mains adapter.
The apparatus includes a measurement amplifier and is supplied with a mains adapter.
Caractéristiques
- F506020