An Object Is Held at a Distance of 18 Cm

question 27

Multiple Choice

An object is held at a distance of 18 cm from a convex mirror creating an image that is 1/6 the object size.What is the focal length of the mirror?

• A) −3.6 cm
• B) −18 cm
• C) −6.0 cm
• D) −9.0 cm

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Definitions:

Scientific Method

A systematic approach to research and experimentation that involves the formulation of a hypothesis, collection of data through observation and experimentation, and the formulation of conclusions based on the analysis of the data.

Cognitive Psychology

An area within psychology that explores cognitive functions such as perception, thought, memory, and learning in individuals.

Control Group

A group in an experiment that does not receive the treatment being tested and is used as a benchmark to measure how the other tested subjects do.

Experimental Group

The group in an experiment that receives the treatment or intervention being tested, as opposed to the control group which does not.