China Wholesale Dual beam IR spectrophotometer Suppliers – LADP-15 Apparatus for Determining Planck’s Constant – Basic Model – Labor
China Wholesale Dual beam IR spectrophotometer Suppliers – LADP-15 Apparatus for Determining Planck’s Constant – Basic Model – Labor Detail:
This Planck’s Constant is used to demonstrate photoelectric effect and calculate Planck’s constant by Einstein’s equation of photoelectric effect.
Specifications
| Description | Specifications |
| Cut-off wavelengths of color filters | 635 nm, 570 nm, 540 nm, 500 nm, 460 nm |
| Light source | 12 V/35 W Halogen Tungsten lamp |
| Sensor | vacuum phototube |
| Dark-current | less than 0.003 µA |
| Precision of accelerating voltage | less than ± 2% |
| Measurement error | approximately ± 10% as compared with literature value |
Parts List
| Description | Qty |
| Main unit | 1 |
| Filters | 5 |
| Power cord | 1 |
| Instruction manual | 1 |
Product detail pictures:
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By Judy from Romania - 2018.12.11 14:13
We have been cooperated with this company for many years, the company always ensure timely delivery ,good quality and correct number, we are good partners.
By Agatha from Houston - 2018.11.22 12:28
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