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Tamil Nadu Board of Secondary EducationSSLC (English Medium) Class 7

If a ray of light is falling on a plane mirror at an angle of 500 is formed, what will be the angle of reflection? - Science

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Question

If a ray of light is falling on a plane mirror at an angle of 500 is formed, what will be the angle of reflection?

Answer in Brief

Solution

Angle of incidence ⌊i = 90° – 50°
⌊i = 40°
According to laws of reflection,
⌊i = ⌊k
Angle of incidence = Angle of reflection
⌊i = 40°
∴ ⌊r – 40°
Angle of reflection ⌊r = 40°

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Chapter 1: Light - Evaluation [Page 22]

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Samacheer Kalvi Science - Term 3 [English] Class 7 TN Board
Chapter 1 Light
Evaluation | Q V. 20. | Page 22
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