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A megaphone amplifies sound by all the above increasing the range of frequencies that can be produced. focusing sound energy into one specific direction. spreading out the sound…

A megaphone amplifies sound by all the above increasing the range of frequencies that can be produced. focusing sound energy into one specific direction. spreading out the sound…
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A megaphone amplifies sound by

all the above
increasing the range of frequencies that can be produced.
focusing sound energy into one specific direction.
spreading out the sound waves over a large area.

A megaphone amplifies sound by all the above increasing the range of frequencies that-example-1
User Parthasarathy B
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The answer to this question is All of the above
User Wbruntra
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