Planck's Constant

Planck’s Constant must be one of the most used in modern physics

This experiment uses the photoelectric effect and Einstein's equation to measure the constant h. The box also contains a class set of LED boxes where the constant can be measured using a voltmeter and an ammeter using the equation E = hf.

A teacher must be present at all times during this experiment due to high voltages and the danger of the UV light source.