Question

11.What are the rules of formation of image by convex and concave lenses​

Answer 1

Answer:

Image Formation by Concave and Convex Lenses:

When an object is placed behind the center of curvature, the real image is formed between the center of curvature and focus. The size of the image is same as compared to that of the object.

Answer 2

Answer:

If the outer side of the spherical mirror is reflecting, it is called a convex mirror. Concave mirrors can form inverted and real images and also virtual and erect images. Size can be smaller, larger or of the same size depending on the position of the object. Smaller than the size of the object, always.