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Planck’s Constant

Planck’s Constant

Product Details:

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Product Description

Description:

Principle and Working:

The photon energy by Einstein equation E=h nis equal to energy gap Eg between the valence and conduction bands. The energy Eg is equal to the energy barrier eV0, that electron have to overcome in going from n-doped side of diode junction to p-doped side when no external voltage Vis applied to the diode.

In the p-doped side, electron recombine with holes releasing the energy Eg in the form of photon is given by equation

Eg = eV0

Experiment:

  • To determine plancks constant.
  • To verify the inverse square law.

 

Features:

  • Inbuilt power supply & photocell.
  • Different types of filters and LED.
  • Different types of wave length of all filters and LED

 


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