Answer :
The frequency is a measure if the number of waves that pass a point in a given amount of time.
You could have answered this one from the previous questions you asked here ...
You could have answered this one from the previous questions you asked here ...
This phrase belongs in the blank:
" frequency of the wave multiplied by the number
of seconds in the given amount of time " .
If you had said "... pass a point in one second.", then the blank
would stand for simply " frequency ".