In experiments using a tray, the wave speed is two times the speed in deep water, shallow water. Will cause reflection. Waves will be starting from a critical angle, and it moves from deep water.
In experiments using the tray, it was found that the wave speed is 2 times of deep water wave speed in shallow water. If will cause reflection. The waves will need to begin from any area and the critical angle is.Moving out of the deep waters.