PLANCK'S CONSTANT SN627
Exp-1 To determine planck’s constant.
Exp-2 To verify the inverse square law.
- Inbuilt power supply & photocell.
- Different types of filters and LED.
- Different types of wave length of all filters and LED
- Photoelectric effect.
- Photo cell.
- Work function.
- Planck's constant.
- Photoelectric voltage.
- Photon energy.
Principle and Working:
The photon energy by Einstein equation E=hn is 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 V is 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
Contents:
| S. No. | Item Name | Qty. |
| 1 | Planck's Constant Apparatus | 1 |
| 2 | Set of color filters | 1 |
- Planck’s Constant Apparatus
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SPECIFICATIONS Photocell : Cs, vacuum tube.
Output : 4mm safety socket.
Mounting rod : 10mm dia.
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- Set of Colour Filters
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SPECIFICATIONS Red : 635 nm
Orange : 570 nm
Yellow : 540 nm
Green : 500 nm
Blue : 460 nm
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Atomic & Nuclear Physics Experiments
- Milikan Oil Drop Apparatus
- Balmer Series & Emission Spectra
- Balmer Series & Rydberg Constant
- Franck Hertz Experiment
- Zeeman Effect
- Planck's Constant by Cs Photocell
- Planck's Constant
- Planck's Constant by LED
- Electron Spin Resonance & Nuclear Magnetic Resonance (ESR-NMR) (Imported)
- Radition Counter (Imported)
- Gamma Spectroscopy & Compton Effect
- X-Ray Apparatus (Imported)
- Thomson Tube (Imported)
- Electron Diffraction (Imported)
- Rutherford Scattering Apparatus (Imported)