Question

A wave with a period of 1⁄3 second has a frequency of

A. 3 Hz.
B. 67 Hz.
C. 300 Hz.
D. 33 Hz.

The correct answer is A.

Hope this helps !

Answer 1

A wave with a period of 1⁄3 second has a frequency of

A. 3 Hz.

B. 67 Hz.

C. 300 Hz.

D. 33 Hz.

THE CORRECT ANSWER IS A ;)

Answer 2

(T): T = 1/f. Or: f = 1/T. The unit for the time period is second "s" while the unit for frequency is Hertz "Hz" (=1/s). We know that T = 1/3 s. That means that f = 1/(1/3s) = 3 1/s = 3 Hz.
its A