optics Flashcards
what is the dotted line called
the normal
what is concave
short sighted
what is convex
long sighted
what does a concave look like
caved in at the sides
what does a convex look like
curved or rounded outwards
what is the most powerful wave
gamma rays
what can exposure to too much x-ray waves cause
higher chance of cancer and damage to DNA cells
what is the function of the iris
controls how much light enters the eye
what is the function of the retina
adds colour and flips images right way round
what is the function of the lens
reflects light onto the retina
what is the order of colours in the light spectrum
Red, Orange, Yellow, Green, Blue, Indigo, Violet (ROYGBIV)
what is a source of light
the sun
what is the function of the cornea
protective layer on outside of eye
True or False: the eye sees images upside down and the pupil flips it the right way up
False
what is the function of the optic nerve
carries electrical inpulses to the brain
