Complete the following with the help of suitable diagram. The rules used for drawing ray diagrams for the formatino of image by a convex lens. Rule 1:_________,(b) Rule 2:_________,( c) Rule 3:_________

Complete the following with the help of suitable diagram. The rules u

1.	Complete the following with the help of suitable diagram. The rules used for drawing ray diagrams for the formatino of image by a convex lens. Rule 1:_________,(b) Rule 2:_________,( c) Rule 3:_________
Answer» Solution :The rules used for drawing ray DIAGRAMS are as follows: (a) Rule 1 : When the incident ray is paralled to the principal axis, then the refrected ray passes through the principale FOCUS F . (b) Rule 2 : When the incident ray is PASSING through the principal focus, the fefracted ray is direction parallel to the principale axis. (c) Rule 3 : When a incident ray passes throught the optical centre of the lens, it passes without changing its direction