Question

in order to obtain a magnification of -2 with concave mirror the object should be placed where ......
GIVE PROPER REASONS.... LIKE LITERALLY PROPER REASON​

Answer 1

Answer:

If the light rays converge (as in a converging lens), then they will converge to a point. Note that each lens has two focal points - one on each side of the lens. Unlike mirrors, lenses can allow light to pass through either face, depending on where the incident rays are coming from

The reason why a lens has two focii while a mirror has only one is because of the fact that light is transmitted through a lens and not a mirror. Unlike in mirrors, images in lenses can form on either side and thus we require two focii to properly determine the formation and position of an image.

Explanation:

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