Light and Optical Systems Crossword

Diagram used to represent how light travels; each ray is represented by an arrow.
Any technology that uses light.
Device that is used to see things too small for the naked human eye.
The line that is perpendicular to a surface.
The ray of light that arrives at a mirror or other substance is the ________________.
The ray of light that leaves the mirror or other substance is the ____________.
Light travels in straight lines, light can be reflected, light can bend, and light is a form of energy, are all _______ of light.
Calculated by Albert A. Michelson is the 1920's.
Explained how light worked; lived in the 6th century B.C.
Used to see objects from a distance.
An optical device that reflects images.
Object that doesn't let light pass through