Choose the BEST answer to the following: The compressions and rarefactions in sound normally travel (a) in the same direction. (b) in opposite directions. (c) at light angles to each other. (d) None of these.

Question

Choose the BEST answer to the following:

The compressions and rarefactions in sound normally travel

(a) in the same direction.

(b) in opposite directions.

(c) at light angles to each other.

(d) None of these.

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