How is the reflection of light ray from a plane mirror different from the refraction of light ray as it enters a block of glass ?

Q. A light ray that enters a glass block from the air is refracted because:

Q. When light is incident on a glass block at polarizing angle
a) reflected ray is plane polarized
b) reflected and refracted rays are perpendicular
c) reflected and refracted rays are partially polarized
d) refracted ray is partially polarised

Q. A ray of light after reflection from mirror is known as ​

Q. When a ray of light enters glass from water, it bends :