Planck's Constant

Composition:

- 01 circuit board with tension control, load resistor, on / off switch, and terminals for connection of two Multimeter simultaneously for measuring current and voltage.
- 05 connection plates for LEDs (white, blue, yellow, green and red);
- 05 metal brackets;
- 01 supply voltage of 6V / 1.5A;
- 01 metal plate with 1 slot;
- 01 converging lens Ø50mm DF 50mm in plastic holder with magnetic fixation;
- 01 converging lens Ø50mm DF 100 mm in plastic holder with magnetic fixation;
- 01 diffraction grating with 500 lines / mm in plastic holder with fixing;
- 01 plastic card with a magnetic fastening and graduate 15cm-0-15cm for the LED spectrum measurement;
- 02 pairs of banana connection cables / banana 1m (Black / Red);
- 01 tape 2m;

Studies:

- Determination of the Planck constant by Electroluminescence;
- Diffraction of Light;
- Determination of Wavelength;