MCQ
When light is incident on a medium at angle $i$ and refracted into a second medium at an angale $r,$ the graph of $\sin i$ vs $\sin r$ is as shown in the graph. From this, one can conclude that is as shown in the graph. From this, one can conclude that :-
$(a)$ Velocity of light in the second medium is $1.73$ times the velocity of light in the $I$ medium
$(b)$ Velocity of light in the $I$ medium is $1.73$ times the velocity in the $II$ medium
$(c)$ The critical angle for the two media is given by $\sin \,{i_c}\, = \,\frac{1}{{\sqrt 3 }}$
$(d)$ $\sin \,{i_c}\, = \,\frac{1}{2}$
- A$a,c$
- ✓$b,c$
- C$a,d$
- D$b,d$
