If u is the object distance and v the image distance, which of the following expressions gives the linear magnification produced by a convex lens of focal l...

If u is the object distance and v the image distance, which of the following expressions gives the linear magnification produced by a convex lens of focal length f?

Answer Details

Magnification, M = v/u = v (1/u)
And for the Lens formula 1/u + 1/v = 1/f
=>1/u = 1/f - 1/v
∴M = V(1/u)
= V(1/f - 1/v) = v/f - v/v = v/f - 1
∴M = v/f - 1