1.

what happen th focal length of a mirror when it is broken into small pieces ?

Answer»

If themirrorisbrokeninto twopieces, itsfocal lengthremains the same .Focal lengthchanges when there is change in the radius of curvature of themirror. ... If themirrorisbrokeninto twopieces, each part of themirrorwill act as an independentmirror. Thus eachbrokenpart will reflect its own image.



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