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# Explain the following terms: Incident ray, Reflected ray, Angle of incidence, Angle of reflection, Normal.

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#### Incident ray - The ray of light falling on the surface AB is called the incident ray. In figure, PN Is the Incident ray. Reflected ray - The Incident ray bouncing back In the same medium after striking the reflecting surface is called reflected ray. In figure, NQ Is the reflected ray. Angle of Incidence - The angle formed between the incident ray and the normal Is the Angle of Incidence. (PNM is the Angle of Incidence.) Angle of reflection - The angle formed between the normal and the reflected ray Is called angle of reflection (MNQ is the angle of reflection) Normal - It is the line drawn perpendicular to the reflecting surface at the point of incidence. MN is normal.

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Q1
Explain the following terms:
Incident ray, Reflected ray, Angle of incidence, Angle of reflection, Normal.
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Q2
Explain the following terms- Incident ray, reflected ray, angle of incidence, angle of reflection, normal. [2 Marks]
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Q3

Explain the terms below with help of a diagram.

(a) Incident ray

(b) Reflected ray

(c) Normal

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Q4
Angle of reflection is the angle between reflected ray and the ........(incident ray, normal).
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Q5
What is meant by 'reflection of light'?
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