A person can see clearly up close but cannot focus on objects beyond $91\mathrm{.}0$ cmcm$.$ She opts for contact lenses to correct her vision.

Part A

Is she nearsighted or farsighted?

She is nearsighted.She is farsighted.

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Part B

What type of lens $($converging or diverging$)$ is needed to correct her vision?

Converging lens.Diverging lens.

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Part C

What focal$-$length contact lens is needed?

Express your answer with the appropriate units.

Activate to select the appropriates template from the following choices. Operate up and down arrow for selection and press enter to choose the input value typeActivate to select the appropriates symbol from the following choices. Operate up and down arrow for selection and press enter to choose the input value type

ff $=$

nothingnothing

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Part D

What is the power of the contact lens in diopters?

Express your answer in diopters.

Activate to select the appropriates template from the following choices. Operate up and down arrow for selection and press enter to choose the input value typeActivate to select the appropriates symbol from the following choices. Operate up and down arrow for selection and press enter to choose the input value type

DD $=$

nothing

diopters

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