Planck constant apparatus in Pakistan

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

 

Description

Introduction

This LEAI-50 Experiment Apparatus of Planck’s Constant is used to demonstrate photoelectric effect and calculate Planck’s constant according to Einstein’s equation of photoelectric effect. It is a cost-effective teaching apparatus for physics laboratories at colleges and universities. The instruction manual contains experimental configurations, principles and step-by-step instructions. Please click Experiment Theory and Contents to find more information about this apparatus.

Features:

  • Complete apparatus
  • Compact and stable
  • Low dark current
  • Affordable

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