Objectives of the Experiment
● Verify the Einstein's theory, experimentally determine Planck's Constant.
● Study the wave-particle duality in light.
● Find out the relationship between frequency and energy.

How it works
When incident light shines on the cathode, photo-electrons can be emitted and transferred to the anode. This constitutes a photocurrent. By changing the voltage between the anode and cathode, and measuring the photocurrent, you can determine the characteristic current-voltage curves of the photoelectric tube.

Features
● High sensitivity and stable current amplifier.
● High quality and integrative optical filters prevent interference between different spectral lines.
● Low level of dark current and anode reverse current.

Typical Result






Order Information