A Contact Lens Is Made of Plastic with an Index

question 43

Multiple Choice

A contact lens is made of plastic with an index of refraction 2.70.The lens has an outer radius of curvature of + 3.3 cm and an inner radius of curvature of + 4.5 cm.What is its focal length?

• A) -7.3 cm
• B) +4.6 cm
• C) +1.1 cm
• D) +7.3 cm
• E) -1.1 cm

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Definitions:

Genital Candidiasis

A fungal infection affecting the genital area, caused by the yeast genus Candida, commonly presenting as vaginal yeast infections in women.

Yeast Infection

A fungal infection typically caused by Candida species, leading to symptoms like itching and discharge.

Sexually Transmitted Infection

Infections that are commonly spread by sex, including vaginal intercourse, anal sex, and oral sex.

Young Adolescents

A developmental stage typically referring to individuals aged between 10 and 14.