Dr. Sunil Kushwaha Solutions for Chapter: Light - Reflection and Refraction, Exercise 2: Numerical Problems for Practice

An object $3 \mathrm{cm}$ high is placed at a distance of $10 \mathrm{cm}$ in front of a concave mirror of focal length $20 \mathrm{cm}$. Find the position, nature and size of the image formed.

An object placed at a distance of $10 \mathrm{cm}$ from convex mirror of focal length $15 \mathrm{cm}$. Find the position of image and magnification.

An object  $4 \mathrm{cm}$ high is placed at a distance of $40 \mathrm{cm}$ in front of a concave mirror of focal length $20 \mathrm{cm}$. Find the distance (in $\mathrm{cm}$) from the mirror at which a screen should placed to obtain a sharp image.

An object $5 \mathrm{cm}$ high is placed at a distance of $20 \mathrm{cm}$ in front of convex mirror of focal length $15 \mathrm{cm}$. Find the position, nature and size of image.

A convex mirror used for rear view on a automobiles has a radius of curvature of $3.0 \mathrm{m}$. If a bus is located at $5.00 \mathrm{m}$ from this mirror. Find the position, nature and magnification of image?

A concave mirror forms real image of height $4 \mathrm{cm}$ of an object $1 \mathrm{cm}$ high placed at $20 \mathrm{cm}$ apart from the mirror. Calculate the image distance and focal length of the mirror.

An object of $4 \mathrm{cm}$ high placed in front of concave mirror of focal length $20 \mathrm{cm}$ forms $8 \mathrm{cm}$ high image. Find the position of object and position of image.

How far should an object be from the pole of a concave mirror of focal length $20 \mathrm{cm}$ to form a real image whose size is $\frac{1}{5}th$ of the size of the object.