State One Factor On Which Critical Angle For A Given Pair Of Media Depends The Critical Angle For GlassAir Interface Is 45° For Yellow Light

State one factor on which critical angle for a given pair of media depends. The critical angle for glass-air … for (i) red light,…

Answers:

The value of critical angle for a given pair of media depends on the colour of light.
(Hint: Remember VIBGYOUR—Violet has minimum ic  whereas Red has maximum).
(i) For red light, the critical angle will be greater than 45°.
(ii) For blue light, the critical angle will be less that 45 °.