Which of the following statement is/are correct about the refraction of light from a plane surface when light ray is incident in denser medium. [ C is critical angle]

If angle of incidence is less than C, then deviation increases if angle of incidence also increased.

The maximum angle of deviation during refraction is  $\pi /2-C$, it will be at angle of incidence C

The maximum angle of deviation for all angles of incidence is  $\pi -2C$, when angle of incidence is slightly greater then C

If angle of incidence is greater than C, then angle of deviation decreases if angle of incidence is increased.