Question

(a) Draw diagrams to show how does the light
bend when it travels from liquid to glass and
then to liquid if (i) the light slows down in
glass, and (ii) the light speeds up in glass.
(b) State to conditions under which the light ray
passing from liquid to glass travels straight
without bending. Will the glass be visible
then ?​

Answer 1

Explanation:

If light enters any substance with a higher refractive index (such as from air into glass) it slows down. The light bends towards the normal line. ... The light bends away from the normal line. A higher refractive index shows that light will slow down and change direction more as it enters the substance

Answer 2

(a)

(i) If light slows down in going from liquid to glass, the emergent it means that glass > liquid so it will bend towards the ugh the glass normal at the point of incidence in passing from liquid to glass at the first surface, while it will bend away from the normal at the second surface in passing from glass to liquid. The ray diagram is shown in Fig. The light beam suffers lateral displacement.