An object is placed 20cm in front of a p...

An object is placed 20cm in front of a plane mirror. The mirror is moved 2cm towards the object. The distance between the positions of the original and final images seen in the mirror is (a) 2 cm (b) 4 cm (c) 10 cm (d) 22 cm

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An object is placed 20cm in front of a plane mirror. The mirror is moved 2cm towards the object. The distance between the positions of the original and final images seen in the mirror is (a) 2 cm (b) 4 cm (c) 10 cm (d) 22 cm

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