TaNuj^'s Weblog

Posted on: August 8, 2008

1. Describe TWO things that you have learnt during this lesson.

This lesson I have learnt about refraction and total interrior reflection.

Refraction-Is the bending of light ray as it passes into a different substance. Light changes its speed as it passes from different optical density.

Total internal reflection- The light is unable to escape from the substance its in.


2. Outline THREE things you know about optical technologies. Three things i know about optical technologies are:

– There are many optical instruments in use. A few examples of optical instruments include, a  endosope, telescope, microscope, binaucular, and there are many more.

–  Optical technologies have the function to refract and reflect light.

–  Optical technologies use light.


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