A Compound Lens Is Made by Joining the Plane Surfaces

question 46

Multiple Choice

A compound lens is made by joining the plane surfaces of two thin plano-convex lenses of different glasses.The radius of curvature of each convex surface is 80 cm.The indices of refraction of the two glasses are 1.50 and 1.60.What is the focal length of the compound lens?

• A) 67
• B) 69
• C) 71
• D) 73
• E) 75

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Definitions:

Subculture

A cultural group within a larger culture, often having beliefs or interests at variance with those of the larger culture.

Distinctive Values

Unique or specific beliefs and principles that differentiate one culture, society, or individual from another, guiding behaviors and decisions.

Larger Culture

The dominant set of norms, values, beliefs, and practices that characterizes a larger society or population group.

Rationalization

The process of making actions or outcomes seem reasonable or logical, often by creating a plausible explanation.