In which material do you think light rays travel faster-glass or air?

When a light wave travels from air to glass :

Q."4 A light ray travels in a glass slab of refractive index mu=2 .Find the time taken by the light ray to travel in the glass slab for a distance of 20sqrt(3)d (Velocity of light =c )

When a light wave travels from air to glass,

Draw a ray diagram to show a light ray travels from denser medium (glass) to raree mediym (air)

In which medium sound travels faster: air or iron?

In the figure, you can see a light ray travelling from air to glass. Why is there no refraction?

The refractive index of a transparent material is 1.84 and that of glass is 1.52. By how much amount the light travels faster in a window glass than in the material ?

While passing through the prism the light ray travelling from air to glass bends towards the ………..

A ray of light travelling obliquely from glass to air :