L 5a Making light
OUTCOME
By the end of the lesson you will will be able to identify the different ways light is made and how these are related to the change in momentum of electrons.
Modern lights use different methods of exciting electrons to create light
Lasers uses light trapped to stimulate more light to create coherent in phase light
Synchrotron radiation is created when electrons are accelerated through a magnetic field
LEDs make light when an excited electron falls back from the conduction band to the valence band
LEARNING TASKS
Explain
Watch this youtube to understand the relationship between electrons and the E-M radiation
Explore and Elaborate
Evaluate
Review 10.3
DPQs 2.10-15, 2.19