2. Your boss asks you compare two sound waves and determine which has the higher frequency. Wave A has a period of 4⁄100 second and Wave B has a period of 1⁄7 second. What would you tell your boss?
A. Wave A has the higher frequency. Its frequency is 4 Hz.
B. Wave A has the higher frequency. Its frequency is 25 Hz.
C. Wave B has the higher frequency. Its frequency is 42 Hz.
D. Wave B has the higher frequency. Its frequency is 7 Hz.
PLEASE DON'T ANSWER UNLESS YOU ARE 100% SURE & PROVIDE AN EXPLANATION