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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0.01mm Electronic Dial Thickness Gauge Meter 10mm Digital Dial Indicator Percent Width Measuring Instruments Gauge Tester Tools Range:0-10mm

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