12
Observing total internal
reflection in water with
a laser beam (refraction
due to glass of beaker
neglected being very
thin) FIGURE 9 13 Prisms designed to bend rays by
90° and 180° or to invert image without changing
its size make use of total internal reflection Rationalised 2023-24
Physics
232
electrical signals which are converted to light
by suitable transducers