1.8 More about the eye Flashcards
1
Q
What lens does a short sighted person need?
A
A diverging lens
2
Q
What lens does a long sighted person need?
A
A converging lens
3
Q
What is the focal length of a lens determined by?
A
The refractive index of the material from which the lens is made
The curvature of the two surfaces of the lens