The Intensity of the Waves from a Point Source at a Distance

question 65

Multiple Choice

The intensity of the waves from a point source at a distance d from the source is I.At what distance from the sources is the intensity equal to 2I?

• A)d/2
• B)d/ \(\sqrt { 2 }\)
• C)d/4
• D)d/8

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Definitions:

Autonomic

Relating to the part of the nervous system that controls involuntary actions of the muscles and internal organs.

Abstract Thought

The ability of the human mind to consider concepts, ideas, and scenarios that are not immediately physically present or tangible.

Cerebrum

The largest part of the brain, responsible for voluntary activities, intelligence, learning, and memory.

Medulla Oblongata

The lowest part of the brainstem, controlling vital functions such as heart rate, breathing, and blood pressure.