A Nearsighted Person Has a Far Point That Is 4

question 107

Multiple Choice

A nearsighted person has a far point that is 4.2 m from his eyes. What focal length lenses must he use in his contact lenses to allow him to focus on very distant mountains?

• A) -4.2 m
• B) -5.2 m
• C) -4.8 m
• D) 4.2 m
• E) 5.2 m

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Definitions:

Acetylene

A hydrocarbon and the simplest alkyne, used as a fuel and a chemical building block.

Correct Hybridization

The appropriate mixing of atomic orbitals to form hybrid orbitals that can explain the bonding in a molecule.

Atom

The basic unit of a chemical element, consisting of a nucleus of protons and neutrons, surrounded by electrons.

Molecule

The smallest particle in a chemical element or compound that has the chemical properties of that element or compound.