Question

A ray of light enters a glass
slab ABDC as shown in
42°
Fig. 4.64 and strikes at the
centre O of the circular part
AC of the slab. The critical
angle of glass is 42°.
Fig. 4.64
Complete the path of the ray till it emerges out from
the slab. Mark the angles in the diagram wherever
necessary.​

Answer 1

The answer is in the attachment above...

Hope it helps...

Regards;

Leukonov/OLegion

Answer 2

Answer:

please prefer the above diagram

thank you! ☺