Question

For a convex lens, if real image is formed the graph between (u+v) and u or v is as follows

Answer 1

The  graph between (u+v) and u or v is option (a).

Explanation:

The image of the options given in question is attached below.

From question, the type of the lens used is convex lens.

The image formed is real.

From graph, the value of u = 2f and the value of v = 2f

Thus, the value of u + v = 4f which is the equation of the graph in option (a).