Two identical objects are placed in front of | vedclass

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

Question

(A) Given,radius of curvature $R = 12 \ cm$. The focal length $f = R / 2 = 6 \ cm$.For a concave mirror,$f = -6 \ cm$ and object distance $u = -18 \ c

Vedclass · Accepted Answer

$1 / 2$

Vedclass · Answer

(A) Given,radius of curvature $R = 12 \ cm$. The focal length $f = R / 2 = 6 \ cm$.For a concave mirror,$f = -6 \ cm$ and object distance $u = -18 \ cm$. Using the magnification formula $m = f / (f - u)$:$m_{concave} = -6 / (-6 - (-18)) = -6 / 12 = -1 / 2$. The size of the image is $|m_{concave}| = 1 / 2$.For a convex mirror,$f = +6 \ cm$ and object distance $u = -18 \ cm$. Using the magnification formula $m = f / (f - u)$:$m_{convex} = 6 / (6 - (-18)) = 6 / 24 = 1 / 4$. The size of the image is $|m_{convex}| = 1 / 4$.The ratio of the size of the image formed by the convex mirror to that formed by the concave mirror is:Ratio $= |m_{convex}| / |m_{concave}| = (1 / 4) / (1 / 2) = 1 / 2$.

Two identical objects are placed in front of a convex mirror and a concave mirror,both having a radius of curvature of $12 \ cm$,at the same distance of $18 \ cm$ from the respective mirrors. The ratio of the sizes of the images formed by the convex mirror to that formed by the concave mirror is:

Similar Questions

$A$ point object is placed at a distance of $30 \, cm$ from a convex mirror of focal length $30 \, cm$. The image will form at

If the lateral magnification is $-2$ for a virtual object in a spherical mirror,then:

The image formed by a convex mirror of focal length $f$ is $(1/n)$ times the size of the object. The distance of the object from the mirror is:

An object is placed at a distance $u$ from a concave mirror of focal length $f$. $A$ real image is formed on a screen placed at a distance $v$ from the mirror. As $u$ changes,$v$ also changes. Which of the following graphs correctly represents the variation of $1/v$ with $1/u$?

Under which of the following conditions will a convex mirror of focal length $f$ produce an image that is erect,diminished and virtual?

Vedclass Test Series

Exam Paper Generator

Online Exam Module