Respuesta :

Answer:

0.03s

Explanation:

Period of wave and its frequency are closely related. Period is the inverse of frequency.

The period of a wave is the time taken for a number of waves to pass through a particular point.

The frequency of a wave is the number of waves that passes through a point at a particular time.

So;

          f  = [tex]\frac{1}{T}[/tex]  

f is the frequency

T is the period

   Period of the wave  = [tex]\frac{1}{30}[/tex]   = 0.03s

Answer:

a

Explanation: