Critical Angle||Total Internal Reflection

Critical Angle|Total Internal Reflection|Conditions For Total Internal Reflection|Questions

If the critical angle for total internal reflection from a medium to vacuum is 45^@ , then velocity of light int he medium is,

Define critical angle for total internal reflection and write its relation with refractive index.

If the critical angle for total internal reflection, from a medium to vacuum is 30^(@) , then velocity of light in the medium is

If the critical angle for total internal reflection from a medium to vacuum is 30^(@) , the velocity of light in the medium is

The critical angle for total internal reflection in diamond is 24.5^(@) The refractive index of the diamond is

If the critical angle for total internal reflection from a medium to vacuum is 30^(@) , the velocity of light in the medium is

An optical fibre (mu = 1.72) is surrounded by a glass coating (mu= 1.50). Find the critical angle for total internal reflection at the fibre-glass interface.