The decimal form of the colored portion of the image is
The portion of the human eye on which image is formed is called ___ .
In an image formed by a mirror, the left portion of the object appears on the right and the right portion appears on the left. This is known as ___
The centre of curvature of a convex lens is at 40 cm and its central portion is wrapped in black paper as shown below. If an object is placed at 90 cm, find the nature of image formed.