A tiny mirror M is fixed on a piece of cardboard placed on a table. The cardboard is illuminated by light from a bulb. The position of the eye with respect to the position of the bulb is shown in the figure as A, B, C and D. In which position mirror will be visible?
A
Following the laws of reflection of light, in case A, when a ray of light from the bulb strikes the mirror M, it will get reflected back such that the angle of incidence is equal to the angle of reflection.