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hello servic audience how are you all so today Im going to demonstrate the laws of reflection of light by using a laser protractor some basic stationery plane mirror and the screen so screen is nothing but a white background so I had a small piece of cardboard on which a small box on which I have attached a white a4 size paper so this is going to act as our screen now what happens is this is the mirror and the first law states that incident ray reflected ray and normal they all lie on the same plane so that can be easily demonstrated even without the use of the protector and you will understand why we are using protector because the second law state set the angle of incidence and the angle of reflection are same so we need to prove that so here I am going to use a red laser right in order to support my demonstration and anything which you see in the mirror will be the reflection we are supposed to concentrate on this widescreen okay so this is our incident ray the incident ray is this
