Two plane mirrors X and Y are placed parallel to each other and are separated by a distance of 20cm. An object is placed between the two mirrors at a distance 5cm from the mirror X. Find the distance of the first three image formed in the mirror X.
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The object distance for the second image 'X' = a +d = b.
Where 'd' is the distance between the two mirrors and a is the first image distance on Y.
The second image on Y is formed at a distance b + d where b is the first image distance on 'X'.
The third image on X is formed at d + b + d.
(ii) 5 cm, 35 cm, 45 cm
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