Постоянный аппарат планка для средних школ

Product Overview

Description

Planck's Constant  Measuring Instrument  for

Students' Grouping Experiments

Art No:L08001

 

     This instrument can carry on the experiment about the rule of photoelectric effect, and calculate Planck's constant according to Einstein's equation of photoelectric effect.

To satisfy the students' grouping experiments, this instrument has features such as compact structure, fastness,convenient operating,steady performance,cheap and convenient service etc.

 

     The anode of  the phototube is not shined directly,so the reverse current is small.

 

Specifications

1. Color filter: 635nm,570nm,540nm,500nm,460nm

2. Sensitive component: vacuum phototube

3. Dark-current: ≤0.003µA

4. Light source: 12V/35W halogen tungsten lamp

5. Length of guide: 395mm

6. Precision of accelerated voltage: ≤2%

7. Measuring error: less than ± 5% comparing with the recognized value   

    (h=6.6219x1034J.S)