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Question
The image of a person appears inverted on the far side of an optical instrument . Identify the optical instrument?
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Solution
The correct option is E Convex lens
A mirror cannot form an image on other side of mirror because there is no refraction .A concave lens always forms an image on the same side of lens because it diverges the rays after refraction so they cannot meet on the other side of lens.A convex lens can form an image on the other side of lens because it converges the rays after refraction so they can meet on the other side of lens , therefore given lens is convex as image is formed on the other side of the instrument.
A mirror cannot form an image on other side of mirror because there is no refraction .
A concave lens always forms an image on the same side of lens because it diverges the rays after refraction so they cannot meet on the other side of lens.
A convex lens can form an image on the other side of lens because it converges the rays after refraction so they can meet on the other side of lens , therefore given lens is convex as image is formed on the other side of the instrument.
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