An Object, Located 90 Cm from a Concave Lens, Forms

question 112

Multiple Choice

An object, located 90 cm from a concave lens, forms an image 30 cm from the lens on the same side as the object. What is the focal length of the lens?

• A) "-150 cm"
• B) "-45 cm"
• C) "-36 cm"
• D) "-180 cm"

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Definitions:

Perimeter

The total length around the boundary of a two-dimensional shape.

Falling Object

An object that is under the sole influence of gravity, typically described in physics with equations of motion.

Picture

A visual representation of an object, scene, or person produced on a surface.

Dimensions

Measurements that define the size or shape of an object, often used in geometry to describe figures in two or three-dimensional space.