57. A boat is on a pond opposite a straight line of shore. Suppose you placed two devices that generate mechanical waves in the water at two points on the shore. (9.3) KU (a) Describe the behaviour of the boat at a point where constructive interference of the waves takes place. (b) Describe the behaviour of the boat at a point where destructive interference of the waves takes place. 58. Explain why we can hear sounds around corners, but we cannot see around corners, even though sound and light both travel as waves. (9.3) 59. What assumption did Newton make about the refraction of light "corpuscles" that was later shown to be incorrect? (9.4) QU 60. Examine the successes and failures of the particle and wave models of light. (9.4) au (a) Name three properties of light accounted for by both models. (b) Name three properties not accounted for by the particle model. (c) Name one property not accounted for by the wave model