Scientists observing the wave on the open ocean measured the time between crests to be 1.00h and the speed of the wave to be 800km/h . computer models of the evolution of this enormous wave showed that it bent around the continents and spread to all the oceans of the earth. when the wave reached the gaps between continents, it diffracted between them as through a slit. the distance between the southern tip of africa and northern antarctica is about 4500km , while the distance between the southern end of australia and antarctica is about 3700km . as an approximation, we can model this wave's behavior by using fraunhofer diffraction. find the smallest angle away from the central maximum for which the waves would cancel after going through each of these continental gaps.