Rev. Notes > IGCSE > Light Previous Topic Light Next Topic Topics
 Nature of light Important features of light Reflection of light Use of mirror (Periscope) Refraction of light Refractive index Critical angle Total internal reflection Use of prism (Periscope) Fiber-optics Convex lens Behavior of standard rays after passing through convex lens Image formed by convex lens Nature and position of image produced by convex lens Principle of camera Dispersion of light Newton's experiment for dispersion of light Improvement in Newton's experiment for dispersion of light Recombination of colors Rainbow Reflection through plane mirror Image through plane mirror Test Yourself

Reflection of light

When the ray of light strikes a mirror, it reflects as shown in the figure below.

The incoming ray is the incident ray, while the outgoing ray is called reflected ray, and the line at right angle to the mirror surface at the point of incidence is called a normal. The mirror in this case is a plane mirror. It means that it is a flat mirror, raher than a curved mirror.

Law of reflection:

There are two laws of reflection. They apply to all types of mirrors.

1- The angle of incidence is equal to the angle of reflection.

i (Angle of incidence)= r (Angle of reflection)

2- The incident ray, the reflected ray and the normal all lie in the same plane.

Image through a plane mirror is a result of reflection of light.

 saiful anwar Said : where is the particle evidence? 19/02/15 05:25 PM

 Keets_xox Said : Clever interpretation of the crappy textbook. Very useful!Keep up the good work and continue the service:) 27/01/15 04:51 PM

 swagmasterflow Said : swag page thx for the help 13/01/15 10:56 PM

 Sonia Ponies Salvajes Said : Very info, much wow 21/05/14 10:45 PM

 matt dillon Said : wow such info 21/05/14 10:45 PM

 Sonia Ponies Salvajes Said : Kewl werk man 21/05/14 10:43 PM

 emily2468 Said : well done!!! these notes are awesome!!! 01/05/14 10:39 PM

 NotJonathan Said : Cooool^^hey whats up guys really like your videos...other than shane your're a bit gay sometimes but i know you're acting haha poodie your so funny and brad you keep me hooked to your video the whole time! you're the only one who doesn make me skip one second of my video 08/03/14 05:04 PM

 ShaneDawson Said : HOLY SH*T LOL how come all three of us are here!! #AMAZINGMIRACLE 08/03/14 05:00 PM

 TheRadBrad Said : What's up pewdie didn expect you here! In case you don't know who i am, im also a walkthrough gamer on youtube! Your videos are awesome btw 08/03/14 04:57 PM

 Poodiepie Said : LOL learning science haha instead of making videos on youtube:))) 08/03/14 04:56 PM

 Divay Said : Good But I Need A Better Explanation With Diagrams 25/01/14 12:14 PM

 April Said : Thanks! But how can i save it ? 05/01/14 02:40 PM

 sandra Domadan Said : im lovn' the website 15/11/13 01:56 PM

 sandra Domadan Said : im lovn' the website 15/11/13 01:56 PM

 jbehera368@gmail.com Said : B.U.T FULL 26/10/13 04:08 PM

 Ayaan Said : Very helpful. Thank you. 17/09/13 02:34 PM

 tina .y Said : Very helpfull...though im in yr10... love this website 15/09/13 12:22 PM

 Shawn Said : Thank you for these notes.They are extremely helpful! 13/07/13 10:03 PM

 rahul kulkarni Said : helped me alot.. m in 9th but loveeee these notes 07/07/13 12:49 PM

 Ayush shah Said : Wow .......! the notes are awesome really helping me for preparing for my examination 06/06/13 01:50 PM

 DinanAlasad Said : Really really helpful stuff. However, its sad that they are not available in printable format.. I tried copying it into Word but the pictures wouldn't copy. Is it possible to make a pdf version of your notes? Thanks and good luck! :) 24/03/13 05:33 PM

 KPOP fever Said : wow... thank you so much!!! i now understand how it works..... 11/03/13 02:55 PM

 farida Said : i would like to give thanks for these information. these are very useful for studies. 08/03/13 10:00 AM

 DEKA ANGGAWIRA Said : I Would Like to Say Thank You , This Site are help me to solve PHYSICS problems. :) 17/02/13 01:18 PM

 secretive Said : thank youuuu :) 29/05/12 04:52 PM

 Princess Zoya Said : Thnks Alot for these notes. Its really helpful for me ------------------------------------------------------------------------------------- Admin Replied: Thank you for your comment :) 12/04/12 05:37 PM