An Object Is 20 Cm to the Left of a Lens

question 35

Multiple Choice

An object is 20 cm to the left of a lens of focal length +10 cm. A second lens, of focal length +12.5 cm, is 30 cm to the right of the first lens. The distance between the original object and the final image is:

• A) 28 cm
• B) 50 cm
• C) 100 cm
• D) 0
• E) infinity

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Definitions:

Glia Cells

Non-neuronal cells in the central nervous system and the peripheral nervous system that do not produce electrical impulses but support, nourish, and protect neurons.

Functions

Specific roles or activities that are typical or expected parts of something, such as the way parts of a machine or body work, or the purposes of social institutions.

Hormone

A signaling molecule produced by glands in multicellular organisms to regulate physiology and behavior.

Behaviour

Refers to the actions or reactions of an object or organism, usually in relation to the environment.