Maharashtra State BoardSSC (English Medium) 8th Standard
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Draw a Figure Describing the Following. The reflecting surface of two mirrors make an angle of 90∘ with each other. If a ray incident of one mirror has an angle of incidents of 30∘ - Science

Diagram
Sum

Draw a figure describing the following.

The reflecting surface of two mirrors make an angle of 90 with each other. If a ray incident of one mirror has an angle of incidents of 30, draw the ray reflected from the second mirror. What will be its angle of reflection? 

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Solution

Let r2 be the angle of reflection from the second mirror. 

From laws of reflection,

`angle i _1 = angle r_1 = 30° `

Now in `triangle` ABC

θ = 180° - 90° - 60° = 30°

⇒ i2 = 60°

Hence , r2 = 60°

The angle of reflection of incident ray is 60.

Concept: Reflection of Light
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APPEARS IN

Balbharati General Science 8th Standard Maharashtra State Board
Chapter 16 Reflection of Light
Exercise | Q 2 | Page 115
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