∠i + ∠r = 60°
As ∠i = ∠r
So, angle of incidence = 30°
Question
The angle between incident ray and reflected ray is 60°. What is the value of angle of incidence?
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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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