Narendra Kumar Solutions for Chapter: Light - Reflection and Refraction, Exercise 1: PROBLEMS FOR PRACTICE

The size of an object is $2 \mathrm{cm}$. The magnification produced by a mirror is $+1$. What is the size of the image?

An object $2.0 \mathrm{cm}$ in size is placed $20.0 \mathrm{cm}$ in front of a concave mirror of focal length $10.0 \mathrm{cm}$. Find the distance from the mirror at which a screen should be placed in order to obtain a sharp image. What will be the size and nature of the image formed?

Find the position of an object which when placed in front of a concave mirror of focal length $20 \mathrm{cm}$ produces a virtual image, which is twice the size of the object.

A concave mirror of focal length $20 \mathrm{cm}$ forms a real, inverted image of same size as that of object. Where is the object placed with respect to the mirror? Draw a diagram to show the image.

An object is placed $20.0 \mathrm{cm}$ in front of a concave mirror of focal length $15.0 \mathrm{cm}$. Find the distance and nature of the image formed?

The radius of curvature of a convex mirror is $20 \mathrm{cm}$. The size of the image formed is half to the size of the object. Find the distances of the object and image.

An object is placed $15 \mathrm{cm}$ away from a convex mirror of focal length $45 \mathrm{cm}$. Calculate the position of the image and its magnification.

The radius of curvature of a convex mirror used on a moving automobile is $2.0 \mathrm{m}$. A truck is coming behind it at a constant distance of $3.5 \mathrm{m}$. Calculate the position, magnification and nature of the image.