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MHT CET Physics question

PhysicsRay Optics and Optical InstrumentsMHT CET

The real image which is exactly equal to the size of an object is to be obtained on a screen with the help of a convex lens of focal length 15 cm. For this, what must be the distance between the object and screen?

Answer: (D)

Solution

An image equal in size to the object forms when cm, so the object-screen distance is cm; 30 cm is

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Question ID VK-069335