Ray Optics and Optical Instruments

Question: A point object is placed at a distance of $10\,cm$ and its real image is formed at a distance of $20\,cm$ from a concave mirror. If the object is moved by $0.1cm$ towards the mirror, the image will shift by about



1) $0.4cm$ away from the mirror
2) $0.4cm$towards the mirror
3) $0.8cm$ away from the mirror
4) $0.8cm$ towards the mirror
Solution: Explanation: No Explanation
Spherical Mirrors

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