Which of the following line(s) act as a normal to a spherical mirror?
(i) Line joining the pole and centre of curvature
(ii) Line joining the centre of curvature and point of incidence
(iii) Line joining focus and point of incidence
1
Both (i) and (iii)
2
(i), (ii) and (iii)
3
Both (i) and (ii)
4
Both (ii) and (iii)