Lakhmir Singh and Manjit Kaur Solutions for Chapter: Refraction of Light, Exercise 16: Very Short Answer Type Questions

Write the formula for a lens connecting image distance $\left(v\right)$, object distance $\left(u\right)$ and the focal length $\left(f\right)$. How does the lens formula differ from the mirror formula?

Write down the magnification formula for a lens in terms of object distance and image distance. How does this magnification formula for a lens differ from the corresponding formula for a mirror?

What is the nature of the image formed by a convex lens if the magnification produced by the lens is $+3$?

What is the nature of the image formed by a convex lens if the magnification produced by the lens is, $-0.5$?

What is the position of image when an object is placed at a distance of $10 \mathrm{cm}$ from a convex lens of focal length $10 \mathrm{cm}$?

Describes the nature of image formed when an object is placed at a distance of $30 \mathrm{cm}$ from a convex lens of focal length $15 \mathrm{cm}$.

At what distance from a converging lens of focal length $12 \mathrm{cm}$ must an object be placed in order that an image of magnification $-1$ will be produced?