A Concave Spherical Mirror Has a Focal Length of Magnitude

question 20

Multiple Choice

A concave spherical mirror has a focal length of magnitude 20 cm.An object is placed 10 cm in front of the mirror on the mirror's axis.Where is the image located?

• A)20 cm behind the mirror
• B)20 cm in front of the mirror
• C)6.7 cm behind the mirror
• D)6.7 cm in front of the mirror

---

Definitions:

Postformal Thought

A stage of cognitive development proposed beyond Piaget's formal operational stage, characterized by the understanding that answers to questions can vary depending on circumstances and personal perspectives.

Dialectical Thinking

A form of thinking that involves recognizing and integrating opposing viewpoints and ideas, often leading to the synthesis of a new understanding or solution.

Predicaments

Difficult, perplexing, or trying situations that require a solution.

Scaffolding

The support for learning and problem solving that encourages independence and growth.