A boy times the number of ripples reaching the shore for 12 seconds. He finds 72 ripples reach the shore. What is the frequency of the waves? Share with your friends Share 0 Shriya Kumar answered this Frequency = no. of waves / time = 72/12 = 6 Hz 1 View Full Answer Jaina Suthar answered this no. of waves= 72 time=12 frequency=no. of waves /time = 72/12 =6 hz 2