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4. Image formation by mirror

Image Formation By Convex Mirror

The image formed in a convex mirror is always virtual and erect, whatever be the position of the object. In this section, let us look at the types of images formed by a convex mirror.

  • When an object is placed at infinity, a virtual image is formed at the focus. The size of the image is much smaller than compared to that of the object.

When an object is placed at a finite distance from the mirror, a virtual image is formed between the pole and the focus of the convex mirror. The size of the image is smaller than compared to that of the object.

Summary

S. NoPosition Of ObjectPosition of ImageSize of ImageNature of Image
1At InfinityAt the focus F, behind the mirrorHighly diminishedVirtual and Erect
2Between Infinity and the PoleBetween P and F, behind the mirrorDiminishedVirtual and Erect

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