Question 4 beach 3 m .C (h= 2 m) B (h= 5 m) 10 m A (deep water) 30 m wave rays A monochromatic wave is approaching to the beach as shown in the figure. Two wave rays from the resulting refractive patterns are shown. The widths between the two rays at locations A (deep water), B (depth=5 m), and C (depth =2 m), are given o the drawing. The wave length has been measured at point and found to be equal to 25 m. It is known that the wave is about to break at location C. We assume that the wave breaks when = 0.78. Ignore the reflection from the beach. We assume that 15% of the wave energy is lost as the wave propagates from location B to C, and there is no energy loss as the wave propagates from location A to B. (1) Determine the wave period and height at location C. (2) Determine the wave length and the wave height at point B. (3) Determine the wave height in deep water. (4) Determine the lowest acceptable depth at point A so that the given assumptions hold. Question 4 beach 3 m .C (h= 2 m) B (h= 5 m) 10 m A (deep water) 30 m wave rays A monochromatic wave is approaching to the beach as shown in the figure. Two wave rays from the resulting refractive patterns are shown. The widths between the two rays at locations A (deep water), B (depth=5 m), and C (depth =2 m), are given o the drawing. The wave length has been measured at point and found to be equal to 25 m. It is known that the wave is about to break at location C. We assume that the wave breaks when = 0.78. Ignore the reflection from the beach. We assume that 15% of the wave energy is lost as the wave propagates from location B to C, and there is no energy loss as the wave propagates from location A to B. (1) Determine the wave period and height at location C. (2) Determine the wave length and the wave height at point B. (3) Determine the wave height in deep water. (4) Determine the lowest acceptable depth at point A so that the given assumptions hold