In people suffering from cataract the eye lens becomes clouded. Cataract is treated by replacing the opaque lens with a new artificial lens.
Question
Which part of the eye gets affected if someone is suffering from cataract? How is it treated?
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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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