Question

A wave's period and its frequency have a _____ relationship

Answer 1

Reciprocal. I hope this helps

Answer 2

Answer:

Reciprocal

Explanation:

Wave period of any wave is inversely proportional to its frequency.

If "W" represents the wave period and "f" represents the frequency, the relationship between the two can be represented mathematically as follows -

$f = \frac{1}{W}$

Wave period is basically the the time taken by one complete cycle of wave.  

While frequency is just opposite of wave period and it counts the number of  cycles of a wave in a certain time period.

Thus, the relationship between the wave's period and its frequency is reciprocal.