a letter by mirror to humans

"The Letter" is a touching story of an old man who is all alone and waits for his only daughter's letter for five long years. He receives that letter only at his grave but for that he pays a price. While living a lonely, morbid life, he undergoes some strange expe..

. You are delighted on reading this news item in The Times of India. You write a letter to the Editor of this newspaper expressing your appreciation for the right step being taken by the Pollution Control Board. Write this letter. Answer: 21, 11th cross 1st Block, Rajajinagar Ba..

Summary - Ray optics is also called geometrical optics as it uses the geometry of straight-line paths (rays) to explain the optical phenomena. Ray optics, infact, is the limiting case of wave optics. This means for most practical purposes, we can ignore the deviation from straight-line path as post..

Magnification - The ratio of the height of the image to the height of the object is called the linear magnification. It is denoted by the letter m. While deriving the mirror formula it has been proved that D ACB and D A 1 CB 1 are similar and so also D FB 1 A 1 and D FED are sim..