A ray of light travelling in air enters obliquely into water. Does the light ray bend towards the normal or away from the normal ? Why ?

A ray of light travelling in glass emerges into air. State whether it will bend towards the normal or away from the normal.

A light ray travels from oil to water medium. Does it bend towards the normal or away from the normal ?

When a ray of light travelling in glass enters into water obliquely:

A ray of light travelling in air goes into water. The angle of refraction will be:

As light rays pass from water into glass, are they refracted towards the normal or away from the normal?

if a ray of light goes from a denser medium to a rarer medium, will it bend towards the normal or away form the normal?

When a ray of light travelling in air enters obliquely into a glass slab, it is observed that the light ray emerges parallel to the incident ray but it is shifted sideways slightly. Draw a labelled ray diagram to illustrate it.