A student holds one end of a long rope fixed to a wall and moves her hand up and down to generate transverse waves.
She makes 30 complete up-down movements in 18s.
The distance between successive crests on the rope is measured as 0.50m.
The length of the rope from the student’s hand to the wall is 12.5m.
Answer the following questions.
(i) Determine the frequency of the waves produced on the rope.
(ii) Calculate the speed of the waves along the rope.
(iii) How much time will a crest take to travel from the student’s hand to the wall?
(iv) How long after starting will the student first feel the reflected crest returning from the wall?