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E14.0608Photoelectric Effect Demonstrator | |
It is a more useful instrument for research the rule of photoelectric effect: -- Electrons inside an object will escape to the surface immediately when light irradiates on it. -- Initial kinetic energy of the escaping electrons has nothing to do with intensity of light, but increased along with increment of light frequency. -- Saturation current is positively rated to intensity of light. -- The so called 'red limit frequency'. -- The instrument can also determine the stopping potential and qualitative analysis the Planck's constant (h=6.62619x l034J.S). | |
Item | Specification |
Color Filter | 700nm, 635nm, 500nm, 460nm, black plate |
Anode Current of X-rays Tube | ¡Ü2mA |
Sensitive Component | vacuum phototube |
Light Source | 12V/20W incandescent lamp |
Huang Xin