If(I\_{1})and(I\_{2}) be the sizes of real images for two po... | Physics | SolveeIt | Solveeit

Today, August 23

Question

If $I_{1}$ and $I_{2}$ be the sizes of real images for two positions of a convex lens between object and screen,then the size of the object is

A

$I_{1}/I_{2}$

B

$I_{1}I_{2}$

C

$\sqrt{I_{1} I}_{2}$

D

$\sqrt{I_{1}/ I}_{2}$

Answer

$\sqrt{I_{1} I}_{2}$

Explanation

Solution

By displacement method, object size = $\sqrt{\left(I_{1}I_{2}\right)}$