Question

30. For a thin convex lens which one of the following best repre
real image distance v-graph?
a)A
b)B
c)C
d)D​

Answer 1

answer

If u=∞,v=f and if u=f,v=∞

hence a rectangular parabola .

option D is corret.

Explanation:

The distance v of real image formed by a convex lens is measured for various object distance u. A graph is plotted between v and u, which one of the following graphs is correct.