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light (lenses (diverging, converging, the eye), surfaces (translucent…
light
lenses
diverging
converging
the eye
surfaces
opaque
rock
transparent
glass
translucent
frosted glass
white light
roygabiv
red
orange
yellow
green
aqua
green
blue
indigo
violet
spectrum
gas-solid-gas
mirrors
convex
concave
electromagnetic
radiation
xray
gamma rays
uv
alpha/beta
microwave