Question

(a) A short linear object of length b lies along the axis of a concave mirror of focal length f at a distance u from the pole. What is the size of the image?

(b) If object begins to move with speed v₀, what will be the speed of its image?

Answer 1

(a) Since \(\frac{1}{u} + \frac{1}{v} = \frac{1}{f}\) (mirror formula) ...........(i)

(b) From eq. (iv)