An Object Is Placed 15 Cm in Front of a Concave

question 28

Multiple Choice

An object is placed 15 cm in front of a concave mirror with a focal length of 30 cm. What is the magnification?

• A) 1
• B) 2
• C) 1/2
• D) 1/4
• E) −2

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Definitions:

Constant Internal Temperature

The maintenance of a steady body temperature independent of the environment.

Mammals

Warm-blooded vertebrates characterized by the presence of hair or fur, secretion of milk by females for the nourishment of the young, and typically the birth of live young.

One-way Air Flow

A respiratory adaptation in some animals, such as birds, allowing air to pass through lungs in a single direction for more efficient gas exchange.

Horny Beak

A hard, keratinous structure found in birds and certain reptiles, used for feeding, grooming, and other behaviors.