The distance v of the 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?

Question

The distance v of the 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? (A)  (B)  (C)  (D)

Tardigrade Admin · Accepted Answer

For a lens (1/f)=(1/v)-(1/u) If u=∞, v=f and if u=f, v=∞ hence a rectangular parabola .

Q. The distance $v$ of the 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?

For a lens $\frac{1}{f} = \frac{1}{v} - \frac{1}{u}$
If $u = \infty, v = f$ and if $u = f, v = \infty$
hence a rectangular parabola .

Q. The distance v of the 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?

For a lens f1​=v1​−u1​ If u=∞,v=f and if u=f,v=∞ hence a rectangular parabola .

Q. The distance $v$ of the 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?

For a lens $\frac{1}{f} = \frac{1}{v} - \frac{1}{u}$
If $u = \infty, v = f$ and if $u = f, v = \infty$
hence a rectangular parabola .