In: Physics
A person is both myopic and hyperopic. He can see objects clearly only if they are between 30.5 cmcm and 80.0 cmcm .
Part A
What power of contact lens is required to read at the normal near point of 25 cm?
Express your answer using three significant figures.
Part B
What power of contact lens is required to see a distant oobject clearly?
Express your answer using three significant figures.