Question: To decrease the intensity of a wave by a factor of four, what must you do? (a) Decrease the pressure amplitude by a factor of

To decrease the intensity of a wave by a factor of four, what must you do?

(a) Decrease the pressure amplitude by a factor of two.

(b) Decrease the pressure amplitude by a factor of four.

(c) Decrease the pressure amplitude by a factor of eight.

(d) Decrease the pressure amplitude by a factor of √2.

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