An Object and a Screen Are Separated by 15

question 63

Multiple Choice

An object and a screen are separated by 15.0 cm.A convex lens is placed between them,6.82 cm from the object.In this position it causes a sharp image of the object to form on the screen.What is the focal length of the lens?

• A)4.69 cm
• B)41.0 cm
• C)3.72 cm
• D)12.5 cm
• E)4.09 cm

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Definitions:

Argument By Analogy

A form of reasoning where a comparison is made between two similar situations, suggesting that what applies to one should apply to the other.

Reasoning

The process of thinking about something in a logical and sensible way to form a conclusion or judgment.

Tennis

A racquet sport in which two or four players hit a lightweight ball back and forth across a net on a rectangular court.

Deductive Step

A part of reasoning where the conclusion is necessarily derived from the premises.