Abstract
The photoelectric effect illustrates the particle nature of light and gives an estimate of Planck’s Constant.
Portable
Yes
Principles Illustrated
Wave-particle duality. The details of the behaviour of the kinetic energy of the electrons ejected from a metal plate by light are not consistent with a wave model of light.
NCEA & Science Curriculum
Phys 3.5
Instructions
This is an experimental activity that requires about an hour to complete. Contact us for various approaches to using the apparatus.
Safety
The bulb on this apparatus can get quite hot. Be careful to avoid burning fingers.
Individual teachers are responsible for safety in their own classes. Even familiar demonstrations should be practised and safety-checked by individual teachers before they are used in a classroom.
Related Resources
Solar Cells
Teaching Resources
Would you like to contribute lesson suggestions? Contact us.
Credits
This teaching resource was developed with support from
The MacDiarmid Institute
Faculty of Science, Victoria University of Wellington
School of Chemical and Physical Sciences, Victoria University of Wellington