For a critical angle of 60 degrees and the refractive index of the first medium is 1.732, the refractive index of the second medium question

What does the slope of the graph between sin i vs sin r represent

Which physical quantity doesn't change when light travels from one medium to another.

Light has the highest velocity in which medium?

flint glass n=1.70 barium glass n=1.60 crown glass n=1.523water n=1.33 diamond n=2.45

A short pulse of white light is incident from air to a glass slab at normal incidence. After travelling through the slab, the first colour to emerge is