A spherical mirror is obtained as shown in th | vedclass

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

Question

(A) From the figure,the radius of curvature $R = 16 \ cm$. Since the inner surface is reflecting,it is a concave mirror.Focal length $f = \frac{R}{2}

Vedclass · Accepted Answer

Inverted,real and magnified

Vedclass · Answer

(A) From the figure,the radius of curvature $R = 16 \ cm$. Since the inner surface is reflecting,it is a concave mirror.Focal length $f = \frac{R}{2} = \frac{-16}{2} = -8 \ cm$.The object is placed at $u = -10 \ cm$.Using the mirror formula $\frac{1}{v} + \frac{1}{u} = \frac{1}{f}$:$\frac{1}{v} + \frac{1}{-10} = \frac{1}{-8}$$\frac{1}{v} = \frac{1}{10} - \frac{1}{8} = \frac{4 - 5}{40} = \frac{-1}{40}$$v = -40 \ cm$.Magnification $m = \frac{-v}{u} = \frac{-(-40)}{-10} = -4$.Since $m$ is negative,the image is real and inverted. Since $|m| = 4 > 1$,the image is magnified.

$A$ spherical mirror is obtained as shown in the figure from a hollow glass sphere. If an object is positioned in front of the mirror,what will be the nature and magnification of the image of the object? (Figure drawn as schematic and not to scale)

Similar Questions

$A$ candle flame of $3\, cm$ is placed at $3\, m$ from a wall. $A$ concave mirror is kept at a distance $x$ from the wall in such a way that the image of the flame on the wall is $9\, cm$. Then $x$ is......$cm$.

$A$ square of side $3 \ cm$ is placed at a distance of $25 \ cm$ from a concave mirror of focal length $10 \ cm$. The center of the square is on the axis of the mirror and the plane is perpendicular to the axis. The area enclosed by the image of the square is ........ $cm^2$.

At what distance in front of a concave mirror of focal length $30\; cm$,should an object be placed (in $cm$) so that its real image of size three times that of the object is obtained?

What is the nature of the image formed for an object placed on the principal axis of a concave mirror between the pole and the focus?

$A$ spherical mirror forms an erect image three times the linear size of the object. If the distance between the object and the image is $80 \, cm$,the focal length of the mirror is........$cm$.

Vedclass Test Series

Exam Paper Generator

Online Exam Module