UNEB A level physics optics revision notes

Posted on by Godwill Tetah

UNEB A level physics optics revision notes.

Light is a form of energy that travels in a straight line.
Some objects produce light on their own and these are called luminous objects e.g sun, fire worms, fire
fly .
Most objects we see don’t produce light on their own but reflect it from luminous objects and these are
called non-luminous objects e.g. moon, the stars, etc.

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