nursing AIIMS BSc Nursing 2025 Mock Test Series General Science Physics Optics

If an object is placed in front of a concave mirror at a distance of 20 cm and the image is formed on the same side at a distance of 40 cm, then the magnification of the mirror will be:

1

-0.4

2

+0.4

3

+2.0

4

-2.0

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