Turn over 7 10 The diagram represents an arrangement used to generate standing waves on a string. vibration generator masses on mass hanger pulley string A standing wave pattern with two nodes is obtained as shown. Which of the following single changes could produce a standing wave pattern with three nodes? A decreasing the distance between the vibration generator and pulley B decreasing the frequency of the vibration generator C decreasing the mass on the mass hanger D decreasing the mass per unit length of the string (Total for Question 10 = 1 mark)