Question

the degree of bending of light Ray when it travel from one median to another median can be known by its
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Answer 1

Angle of incidence is angle between the light ray and a normal to the surface. When the angle of incidence is 0, the ray strikes the surface square on and is reflected straight back if the object is a mirror. It penetrates without the ray bending, or refracting, if the object is glass, water, etc.

Angle of incidence is angle between the light ray and a normal to the surface. When the angle of incidence is 0, the ray strikes the surface square on and is reflected straight back if the object is a mirror. It penetrates without the ray bending, or refracting, if the object is glass, water, etc.Hence, a light ray does not bend at the boundary in passing from one medium to the other medium if the angle of incidence is 0.

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