Question

What would happen if light incident on the mirror along the normal.

  • light CBSE Class 8
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Answer

∵ Angle of incidence = Angle of reflection

And ∠i (angle of incidence) = 0

So ∠r (angle of reflection) = 0

So, the light returns back to its path.

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Boojho planned an activity to observe an object A through pipes as shown in figure below, so that he could see objects which he could not directly see.

(i) How many mirrors should he use to see the objects? (ii) Indicate the positions of the mirrors in the figure. (iii) What must be the angle with respect to the incident light at which he should place the mirrors? (iv) Indicate the direction of rays in the figure. (v) If any of the mirrors is removed, will he be able to see the objects?

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