This printable crossword puzzle has 10 clues. Answers range from 4 to 14 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
f is the symbol for what
An imaginary line drawn through the optical centre of a lens
An imaginary line drawn through the optical centre perpendicular to both surfaces
Each of a lens’s two faces might be either
A curve transparent material that is smooth and regularly shaped
Converging lenses usually...
The angle of incidence equals the angle of...
Images which cannot be visually projected on a screen
Images that you can project to a screen
A pick Torrell representation of how the light travels to form an Image and can tell you the characteristics of the image