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Photoelectric Effect System, complete with DC Current Supply and DC Power Supply 1.

Products

1272661
SE-6609
Photoelectric Effect System

Photoelectric Effect System

SE-6609   - 

Along with an interface and software, this represents all of the equipment needed to investigate Planck's constant and the photoelectric effect.

See Warning

2634900
SE-6614
Basic Photoelectric Effect Apparatus
SE-6621,SE-6615

Basic Photoelectric Effect Apparatus

SE-6614   - 

This version contains everything needed except the DC Current Supply and DC Power Supply I.  These power supplies are used in other advanced physics experiments and there are cost savings associated with sharing them between the experiments.

Also Available:

2102471
SE-6612
Photoelectric Tube with Box Plate

Photoelectric Tube with Box Plate

SE-6612   - 

Replacement photodiode for the photoelectric effect apparatus.

Overview

The Photoelectric Effect System is used to perform the photoelectric experiment, determining Planck's Constant to within 5%. This apparatus uses the conventional method of determining Planck's Constant. The metal plate in the photodiode is illuminated with various frequencies of light, selected from a mercury lamp using filters. The voltage is then adjusted to stop the photoelectric  current. The stopping voltage is plotted versus the frequency and Plank's Constant is determined from the slope of the graph.

The concept that the stopping voltage does not change with light intensity is tested using the various apertures that vary the light intensity by partially blocking the light.

The filters and the apertures are built into the front of the photodiode case, making is easy to keep clean and eliminating the need for a separate storage box. To change the aperture size in order to investigate the effect of different light intensities, simply pull outward on the aperture ring and rotate it to a different aperture. The filter wheel rotates independently of the aperture ring to select different frequencies of light. The wheel clicks into place, assuring that the filter is aligned with the aperture.

Enlarge Image
A close up of the photodiode showing the filter wheel and aperture selection ring.

Includes

  Photoelectric Effect System
SE-6609
Basic Photoelectric Effect Apparatus
SE-6614
Photoelectric Tube with Box Plate
SE-6612
Photodiode Enclosure with tube
Track, 60 cm and required cables
Mercury Light Source (SE-6608)
Mercury Light Source (SE-6608)
DC Current Amplifier (SE-6621)
DC Power Supply I (Constant Voltage) (SE-6615)
  Photoelectric Effect System
SE-6609
Basic Photoelectric Effect Apparatus
SE-6614
Photoelectric Tube with Box Plate
SE-6612
Filter Wheel (365, 405, 436, 546, 577 nm)
Aperture Dial (2 mm, 4 mm, 8 mm diameter)
Photodiode Enclosure Cap
Mercury Light Source Enclosure Cap
  Photoelectric Effect System
SE-6609
Basic Photoelectric Effect Apparatus
SE-6614
Photoelectric Tube with Box Plate
SE-6612
Power Cord
BNC Connecting Cable, Photodiode Enclosure
Connecting Cable, Red
Connecting Cable, Black
Analog 8-Pin DIN Extension Male-to-Male Adapter (UI-5219)

Specifications

Current Amplifier

Measuring Range
  • 10-8 to 10-13 A, in six ranges

Voltage Output for Photoelectric Tube

Voltage Adjustment
  • -4.5 V to 0 V and -4.5 V to +30 V (two ranges)
Display
  • 4 digit

Photoelectric tube

Spectral Response Range
  • 300 - 700 nm
Anode
  • Nickel Ring

Five Optical Filters

Central Wavelengths
  • 365.0, 404.7, 435.8, 546.1 and 578.0 nm

Buying Guide

2102465
SE-6597
Replacement Hg Bulb
SE-6608
1
2102471
SE-6612
Photoelectric Tube with Box Plate
SE-6609,SE-6614
1
Replacement Parts
Replacement Hg Bulb   SE-6597
Photoelectric Tube with Box Plate   SE-6612

Interface Required

A 550 Universal Interface or 850 Universal Interface is required for use with this product.  Compare the 550 and 850.

Have specific questions or need more information? Contact Teacher and Technical Support.  We're here to help!

Software Required

This product requires or recommends PASCO Capstone for data collection and analysis.