question_answer

A convex and a concave mirror of radii 10 cm each are placed facing each other and 15 cm apart. An object is placed mid way between them. Find the position, nature and size of the final image for reflections first at concave mirror and then at convex mirror.

Answer:

                \[v=15\text{ }cm.\]The inverted image formed by concave mirror is at the pole of the convex mirror. The image is formed at the pole with same size. Size of the image by the concave mirror \[=\frac{v}{u}\times \]size of the object = twice the size of the object Therefore, the image is formed at the pole of the convex mirror. It is inverted with magnification 2.