An Object Is Held at a Distance of 18 Cm

question 28

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:

Posterior Side

The back or rear part of the body or an object, opposite of anterior.

Agonist

A substance that binds to a receptor and activates it, often mimicking the action of a naturally occurring substance.

Antagonist

A substance that impedes or counteracts the action of another, especially a muscle that opposes the action of another muscle.

Synaptic Knob

The part of a neuron that releases neurotransmitters to transmit signals to another neuron or muscle cell.