Two prisms with the same angle but different indices of refraction are put together to form a parallel sided block of glass (see the figure). The index of the first prism is n1 = 1.54 and that of the second prism is n2 = 1.71. A laser beam is normally incident on the first prism. What angle will the emerging beam make with the incident beam? (Compute to the nearest 0.1deg)