Important Questions on Light Energy
Give two examples of refraction of light. 
What do you understand by lateral displacement? A mirror in which the inner hollow surface is the reflecting surface is called a The geometrical centre of a spherical mirror is called the Which of the following relations is true for spherical mirrors? When an object is placed at the principal focus of a concave mirror, the image will be formed at the - The image formed when reflected rays only appear to meet but do not actually meet is If the object is in front of a convex mirror, then the image is always 
