A Dentist Is Using Concave Mirror

question 16

Multiple Choice

A dentist is using concave mirror. The focal length is 2 cm. If the dentist holds the mirror 0.5 cm away from the tooth, how much is the tooth magnified and is it inverted or upright?

• A)3 times, inverted
• B)3 times, upright
• C)4/3 times, inverted
• D)4/3 times, upright

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Definitions:

Analogue

Something that is similar or comparable to another thing, particularly in function or features.

Natural Experiment

An empirical study in which individuals are exposed to experimental and control conditions that are determined by nature or by other factors outside the control of the investigators.

Analogue Experiment

An experimental design used to study a particular phenomenon by replicating it or simulating it in a controlled environment, especially when direct experimentation is not possible.

Disasters

Severe, often sudden events that cause great damage or loss of life, such as natural catastrophes or human-made crises.