A convex lens is used to form a real image of | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) For the displacement method of a convex lens,if the object and screen are fixed at a distance $D$,there are two positions of the lens where a real

Vedclass · Accepted Answer

$6$

Vedclass · Answer

(B) For the displacement method of a convex lens,if the object and screen are fixed at a distance $D$,there are two positions of the lens where a real image is formed on the screen.Let the height of the object be $O$ and the heights of the two images be $I_1$ and $I_2$.The relationship between the object height and the image heights is given by the formula: $O = \sqrt{I_1 	imes I_2}$.Given $I_1 = 4 \ cm$ and $I_2 = 9 \ cm$.Substituting these values into the formula:$O = \sqrt{4 	imes 9}$$O = \sqrt{36}$$O = 6 \ cm$.Therefore,the height of the object is $6 \ cm$.

Similar Questions

Photographs of the ground are taken from an aircraft flying at an altitude of $2000\; m$ by a camera with a lens of focal length $50\; cm$. The size of the film in the camera is $18\; cm \times 18\; cm$. The area of the ground that can be photographed by the camera is

When a plane wavefront is incident on a convex lens,the emerging wavefront becomes . . . . . . .

$A$ beam of light converges at a point $P$. Now a lens is placed in the path of the convergent beam $12 \, cm$ from $P$. At what point does the beam converge if the lens is a convex lens of focal length $20 \, cm$ (in $, cm$)?

$A$ lens of refractive index $n$ is placed in a liquid of refractive index $n'$. If the focal length of the lens in air is $f$,what will be its focal length in the liquid?

Derive the thin lens equation.

Vedclass Test Series

Exam Paper Generator

Online Exam Module