Physics Choose the correct Statement

A convex mirror is used to form the image of an object, then which of the following statements is/ are true?
I. Normal is taken as perpendicular of tangent at the point of incidence.
II. Perpendicular to incident ray which is perpendicular to the plane of incident ray.
III. Line joining centre of curvature of mirror with point of incidence.
IV. Line joining the centre of curvature and pole of curved surface.

A convex mirror is used to form the image of an object, then which of the following statements is/ are true?
I. The image is lies between the pole and focus.
II. The image is diminished in size.
III. The image is real.

Which of the following statement about laws of reflection is / are correct?
I. The incident ray, the reflected ray and the normal all lie in the same plane.
II. Angle of incidence is equal to the angle of reflection.
III. After reflection, velocity, wavelength and frequency of light remains the same but intensity decreases.