Lakhmir Singh and Manjit Kaur Solutions for Chapter: Reflection of Light, Exercise 19: Very Short Answer Type Questions

What is the nature of image formed by a concave mirror if the magnification produced by the mirror is (a)  $+ 4$ and (b)  $-2$ ?

State the relation between object distance, image distance and focal length of a spherical mirror (concave mirror or convex mirror).

Write the mirror formula. Give the meaning of each symbol which occurs in it.

What is the ratio of the height of an image to the height of an object known as?

Define linear magnification produced by a mirror.

Write down a formula for the magnification produced by a concave mirror in terms of height of object and height of image.

Write down a formula for the magnification produced by a concave mirror in terms of object distance and image distance.

Describe the nature of image formed when the object is placed at a distance of $20 \mathrm{cm}$ from a concave mirror of focal length $10 \mathrm{cm}$.