Refractive index of Benzene is …………

When the angle of incidence is greater than the critical angle the light ray is reflected into denser medium at inter face. This phenomenon is called ……

At critical angle of incidence the angle of refraction is ………

Total internal reflection takes place when the light ray travels from ……………

The angle of incidence at which the light ray travels from denser to rarer medium grazes the interface is called …………

The value of refractive index of a rock salt is ………

The critical angle of a diamond is ………

Which one of the following is not an application of total internal reflection ?

In what condition ray grazes along the surface?

A ball coated with lamp black put in a glass tank containing water appears shining due to ………

The refractive index and the critical angle of a medium are n and c respectively then

The absolute refractive index of water is $\frac{4}{3}\backslash frac\{4\}\{3\}$ . The critical angle of water is

The absolute refractive index of a medium is 2. The critical angle for that medium ………

As temperature of medium increases, the critical angle ………

The refractive index of a material is 2, then the critical angle is …………