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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) A diver under water, looks obliquely at a fisherman standing on the bank of a lake. The fisherman look shorter to the driver than what he actually is.
B) A convex mirror always produces a virtual image independent of location of the real object.
B) A convex mirror always produces a virtual image independent of location of the real object.
View answer and explanation
Correct option: C
A is false, B is true
Option C (A is false, B is true) is correct because a diver sees a taller fisherman due to refraction, and a convex mirror always produces a virtual image.
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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