Question #43768

1 Answer
Oct 11, 2017

Let's see.

Explanation:

Given that,

In 0.4 seconds, a wave completes 40 vibrations.

Hence, in 1 second, the wave would complete rarr

=40/0.4 vibrations

=100 vibrations.

Therefore, the frequency of the wave is 100Hz. (Answer).

Hope it Helps:)