A source of sound is detected in the middle of a room. Which can account for a decrease in sound intensity for an observer?

A) a decrease in speed from the source

B) an increase in speed from the source

C) a decrease in the radius from the source

D) an increase in the radius from the source

Question

Physics

Krueger

16 June, 01:24

A source of sound is detected in the middle of a room. Which can account for a decrease in sound intensity for an observer?

A) a decrease in speed from the source

B) an increase in speed from the source

C) a decrease in the radius from the source

D) an increase in the radius from the source

+4

Answers (1)

Know the Answer?

Sylvia Byrd · Answer 1

It's D

Explanation:

The farther you are from the source, the lower the intensity of sound. Speed is not related to the intensity of sound, as the speed of sound is a constant. Therefore, a decrease in sound intensity for an observer can be caused by an increase in the radius from the source, which makes the observer farther away.

A source of sound is detected in the middle of a room. Which can account for a decrease in sound intensity for an observer?A) a decrease in speed from the sourceB) an increase in speed from the sourceC) a decrease in the radius from the sourceD) an increase in the radius from the source

A source of sound is detected in the middle of a room. Which can account for a decrease in sound intensity for an observer?

A) a decrease in speed from the source

B) an increase in speed from the source

C) a decrease in the radius from the source

D) an increase in the radius from the source