When light is refracted by a prism whose refractive index exceeds that of the surrounding medium, it is deviated or bent toward the thicker part of the prism.
(light; is refracted; by a prism) (a prism; exceeds; that of the surrounding medium) (it; is deviated; T:When light is refracted by a prism) (it; bent; T:When light is refracted by a prism)
light a prism it it
is refracted exceeds is deviated bent
by a prism
that of the surrounding medium
T:When light is refracted by a prism
T:When light is refracted by a prism