This printable crossword puzzle on the topic of Physics has 15 clues. Answers range from 4 to 17 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
Emited by luminous objects
A piece of transparent optical material
Thicker at the center than at the edges
Thinner at the center than at the edges
A surface coated with a metal amalgam
A flat or planar reflective surface
Curves light away from its middle
Bends light away from its middle
Traces back light rays
No actual light rays pass through the image
Light rays actually pass through the image
A point at which light rays meet
The distance of the principal focus from the optical center
The line that passes through the middle of the lens
Twice the distance of the focal point