Page 2 - Lesson note reflection through concave mirror

The Object is Placed Beyond C

In this situation we consider two different rays emerging from the object. One parallel
to the principal axis and the other directed towards the centre of curvature of the

mirror. These rays after reflection form an image between the centre of curvature (C)
the focus (F). The image thus formed is diminished, real and inverted.

The Object is Placed at C

Here the two rays emerging from the object are one parallel to the principal axis and
other passing through the focus of the mirror. These rays after reflection form an

image at point C. the image formed has the same size as that of the object and it is

real and inverted.

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