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Stems
the quiz is on 11/26, (Tuesday)
Term | Definition |
---|---|
Convex | thicker in center produces either a real of virtual image |
Concave | thinner in the center produces only virtual image |
Nearsightedness | see nearby clearly but distance is blurry, needs concave lens to correct |
Farsightedness | see distant images clearly but nearby is blurry, needs convex lens to correct |
Cones | respond to colors |
Virtual image | a right side up image |
Real Image | an upside down image |
pupil | looks black, it is a hole covered by the cornea |
Iris | rind of muscle that contracts and expands to change amount of ligt that enters the eye |
Transluscent | allows some light to pass |
Transparent | light passes right through |
Cornea | transparent front surface |
Refraction | when light bends through a medium |
Rods | reacts to dim light, necessary for night vision |
diffuse reflection | parallel rays of light hit a bumpy surface |