mirrors
Optical tools depend on the wave behavior of light
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CONCAVE
CONVEX
CORNEA
IMAGE
LASER
LENS
OPTICS
PUPIL
RETINA
| Y | P | K | S | X | Y | B | E | N |
| U | C | O | R | N | E | A | E | A |
| R | O | O | P | T | I | C | S | E |
| E | N | R | N | U | O | G | S | G |
| T | V | E | K | C | P | F | N | A |
| I | E | S | K | Q | A | I | E | M |
| N | X | A | F | B | W | V | L | I |
| A | H | L | M | X | Y | X | E | G |
| W | U | E | H | R | O | Y | R | R |
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