A narrow beam of light is incident from air on the surface of a rectangular
glass prism of refractice index 1.5. The
angle between the reflected light and
the refracted light is 90 Calculate the
angle of Incidence​

igneous rocks also form where plates converge. the subducting plate melts as it sinks into the crust of the earth, and the melt rises into the overriding plate forming volcanoes. metamorphic rocks are formed mainly in the lithosphere, wherever there is high pressure and high temperature. -woods