This course explains about the light and other radiation, the brightness /luminosity.

Following topics are covered:

1) Get a feel for the words 'Total Radiant Flux' : what is it?

2) Luminosity, Relative Luminosity

3) Light spectrum: Luminosity versus Wavelengths of the seven colours

4) Luminous Efficiency

5) Luminous Intensity

6) Illuminance

7) Inverse Square Law

8) The Photometer , working principle and equations.