Explain the rules for obtaining images formed by a convex lens with the help of ray diagram.

Explanation

Rule-1: When a ray of light strikes the convex lens obliquely at its optical centre, it continues to follow its path without any deviation

Rule-2: When a ray of light passes parallel to the principal axis of convex lens, the refracted rays is converged to the principal focus

Rule-3: When a ray passing through the principal focus the refracted ray will be parallel to the principal axis