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# Period and Frequency of Waves

SATPHY-YGAJ5N

One sound wave strikes a person's ear every $1/100$ of a second. The speed of sound where the person is located is $345\ m/s$.

What is the frequency of the sound?

A

$3.45\ Hz$

B

$34,500\ Hz$

C

$0.01\ Hz$

D

$100\ Hz$

E

$2.9\ Hz$