A Double-Convex Thin Lens Is Made of Glass with an Index

question 62

Multiple Choice

A double-convex thin lens is made of glass with an index of refraction of 1.52.The radii of curvature of the faces of the lens are 60 cm and 72 cm.What is the focal length of the lens?

• A) 70 cm
• B) 63 cm
• C) 75 cm
• D) 66 cm
• E) 58 cm

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Definitions:

FITT Principle

A guideline for creating an effective exercise program that emphasizes Frequency, Intensity, Time, and Type of exercise.

Muscular Strength

The greatest level of strength a muscle or group of muscles can demonstrate in one single attempt.

Muscular Endurance

The ability of a muscle to exert force consistently over an extended period without fatigue.

Physically Active

Engaging in bodily movements that expend energy, ranging from light activities to structured exercise.