Aya is nearsighted, and wears glasses with a power of -3.3 D, which sit 2.0 cm from her eyes. When Aya is NOT wearing her glasses, how far away can she see clearly?
______cm?
The virtual image made by the diverging lens of a distant object ( i.e ∞) at the far point .
The corrective lens is worn at a small distance in front of the eyes ( for a contact lens).
Given and RP= - 3.3 D
We know Refractive Power (RP)
=1/∞ -
i.e
On substituting values
Aya can see clearly upto 32.3 cm or 0.323m
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