Which of the following statements 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 *** same but intensity decreases.
(a) I only (b) II only
(c) I and II (d) I, II and III
