The arrangement for generating stationary waves on a stretched string is shown in Fig. 7.1. The frequency generator has been switched on.
(a(i))[2]
Describe two changes that can be made to the apparatus so that stationary waves are produced on the string.
(a(ii))[1]
Describe the features visible on the stretched string that show stationary waves have been formed.
(b(i))[1]
Determine the phase difference between wave R and wave S. Give an appropriate unit.
(b(ii))[2]
Calculate the ratio of the intensity of wave R to the intensity of wave S.
Worked solution & mark scheme
This 6-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Change the distance between the vibrator and the pulley” …