A Person Uses Corrective Glasses of Power -8

question 1

Short Answer

A person uses corrective glasses of power -8.5 D that are worn 2.0 cm from her eye.
(a) Is she nearsighted or farsighted?
(b) What is her far point without glasses?

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Definitions:

Bushels

A unit of volume that is used in the United States for measuring agricultural commodities like grains and fruits.

Corn

Refers to a cereal plant that yields large kernels on a cob, also a staple food in various regions.

Troy Oz

A unit of measure for precious metals, equivalent to approximately 31.1035 grams, used in the commodities market.