v u so if we put u and v for real img and real object t hen magnification should be ve Secondly if we put u and v for virtual

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v u so if we put u and v for real img and real object t hen magnification should be ve Secondly if we put u and v for virtual img and real obj ect then magnification should be ve Then how come the inverse is given in the solution Pls tell where I m getting w rong 8 04 ish Mi Ask an Expert Question 20 If a lens is moved towards the object from a distance of 40 cm to 30 cm the magnification of the image remains the same numarically The focal length of the lens is 1 20 cm 2 15 cm 3 35 cm 4 18 cm Date Answer 31 01 2019 F4950 A 6018 1 1 1 Vu uf uf V u f 1 m 1 m Where m is the magnification 1 m m 1 V m V m f 40 1 1 uf f u f U u f V u U 1 40 f 2f 70 F 30 1 40 f 1 30 f As magnification is same for two object distances So it means one of the image is real and other is virtual m m For real and inverted image magnification will be negative and for virtual and erect image magnification will be positive Vo LTE 44 44 f 30 f X

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