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NEET UG PHYSICS MCQ: RAY OPTICS
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Medium
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Analyzing
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A real image is formed by a convex lens. If we put it in contact with a convave lens and the combination again forms a real image, which of the following is true for the new image from the combination:
View answer and explanation
Correct option: B
Shifts away from the lens system
Option B (Shifts away from the lens system) is correct because adding a concave lens to a convex lens increases the effective focal length, causing the image to shift further away.
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Statement-A: The minimum distance between an object and its real image formed by a convex lens is .
Statement-B: The distance between an object and its real image is minimum when its magnification is -1. Assertion: We cannot produce a real image by plane or convex mirrors under any circumstances.
Reason: The focal length of a convex mirror is always taken negative. If both the object and image are at infinite distance from a refracting telescope its magnifying power will be equal to
Statement-B: The distance between an object and its real image is minimum when its magnification is -1. Assertion: We cannot produce a real image by plane or convex mirrors under any circumstances.
Reason: The focal length of a convex mirror is always taken negative. If both the object and image are at infinite distance from a refracting telescope its magnifying power will be equal to