IEC PHOTOELECTRIC EFFECT AND PLANK'S CONSTANT
A well-designed instrument with two digital meters to simultaneously indicate both the current through the internal photo-cell and the backing voltage applied to the cell.

Experiments can be performed in the following areas:
• Photo Electric Effect - that light can create an electric current
• Illumination / Current relationship - that current changes with luminous intensity
• Energy of a Photon - that a photon can drive an electron from a surface
• Planck’s Constant - the amazing relationship between energy and wavelength
• Energy Distribution - where the energy is expended

Features:
• Dual meters permit the “backing voltage” and the photo-cell current to be viewed together without requiring the switching from one to the other
• Removal of two selection switches makes readings quicker and less confusing
• Select nanoamps or microamps as the current range for some of the experiments

Included
• Photo-Electric Effect instrument
• 9V battery type #216
• One 12V, 25W QI 2 pin light bulb
• 5 x Colour filters calibrated in nanometres wavelength.
• 4 x Apertures of 7mm, 10mm, 14mm and 20mm diameters
• One test sheet
• Experiment sheets

AP2342-001 IEC Digital Photo-Electric Effect Planck's Constant is a similar instrument but uses LEDs of specific wavelengths as the light sources to avoid the use and possible loss of colour filters.

• Product size: 272x110x160mm (WHD)
• Weight: 1.3kg

  Last edited 19th Jan 2019

  This product is used in teaching these Australian Curriculum codes:
  ACSPH137 - Revolutions in modern physics - Quantum theory - A wide range of phenomena, including black body radiation and the photoelectric effect, are explained using the concept of light quanta
  ACSPH138 - Revolutions in modern physics - Quantum theory - Atoms of an element emit and absorb specific wavelengths of light that are unique to that element; this is the basis of spectral analysis
  ACSPH136 - Revolutions in modern physics - Quantum theory - On the atomic level, electromagnetic radiation is emitted or absorbed in discrete packets called photons; the energy of a photon is proportional to its frequency; and the constant of proportionality, Planck’s constant, can be determined experimentally (fo
  Click a curriculum code to see other products that relate.

  Accessories / Spare Parts:
  PA2043-004	IEC Lamp Globe Q/I P/E Effect Spare 12V 25 to 30W	from	$2.80 plus GST
  Similar Products:
  AP2343-001	IEC Planck's Constant	from	$99.00 plus GST
  Documents:
  Experiment	MP41A Photoelectric Effect
  Experiment	Photoelectric Effect