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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

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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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