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A square mnap is kept between F and C on...

A square mnap is kept between F and C on the principal axis of a concave mirror as shown in figure . Find a rough image of this object.

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Object is placed between F and C. Therefore ,image is real inverted magnified and beyond C. Further pq is towards F. Therefore ,its image p'q' is towards imfinity and it is more magnified. A rough image is as shown alongside.

From the ray shown in figure ,we can see that n'q' will be a straight line.
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Knowledge Check

  • An infinitely long reactangular strip is placed on principal axis of a concave mirror as shown in figure. One end of the strip coincides with centre of curvature as shown. The hright of rectangular strip is very small in comparison to focal length of the mirror. Then the shape of image of strip formed by concave mirror is .

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