Question

9. The angle made by the reflected ray and the normal to the interface and is called the
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Answer 1

Hey mate ,

Angle made between reflected Ray and normal is called the angle of reflection .

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Answer 2

Explanation:

The angle made by the reflected ray and the normal to the interface is called as Angle of Reflection.

»Angle of incidence is also equal to angle of reflection.

»light follows fermats principle

»Fermats principle » light takes the least path to travel