A Toy Is 14 Cm in Front of a Convex

question 5

Multiple Choice

A toy is 14 cm in front of a convex spherical mirror. If the image of the toy is 5.8 cm behind the mirror, what is the focal length of the mirror?

• A) -20 cm
• B) -9.9 cm
• C) -4.1 cm
• D) +9.9 cm
• E) +20 cm

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Definitions:

Brachium

An anatomical term referring to the arm, specifically the upper arm from shoulder to elbow.

Sarcomere

The basic contractile unit of muscle fiber, responsible for the muscle's ability to contract and produce movement.

A Band

The dark area extending across the length of the sarcomere in muscle fibers, composed of thick myosin filaments along with portions of thin actin filaments.

H Zone

A region within the sarcomere of striated muscle fibers visible under a microscope during muscle relaxation, containing only myosin filaments.