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To Obtain a Magnification Of, –0.5 with a Convex Lens, the Object Should Be Placed: (A) at F (B) Between Optical Centre and F (C) Between F and 2f (D) Beyond 2f - Science

To obtain a magnification of, –0.5  with a convex lens, the object should be placed:
(a) at F
(b) between optical centre and F
(c) between F and 2F
(d) beyond 2F

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Solution

Beyond 2F: since the magnification is negative and less than 1, the image formed is real, inverted and diminished. Therefore, the object should be placed beyond 2F. 

Concept: Linear Magnification (M) Due to Spherical Mirrors
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Chapter 5: Refraction of Light [Page 248]
Q 35
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Lakhmir Singh Class 10 Physics (Science)
Chapter 5 Refraction of Light
Q 35 | Page 248
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