If a ray of light is incident at a glass surface at the Brewster's angle of 60°, then the angle of deviation inside glass is

• 90°

• 60°

• 45°

• 30°

72.

Identify the wrong sign convention.

• The magnification for virtual image formed by a convex lens is positive.

• The magnification for real image formed by a convex lens is negative

• The magnification for virtual image formed by a concave lens is negative

• The distances measured in the direction of incident light is positive