A convex lens has a focal length `f`. It is cut into two parts along the dotted line as shown in figure. The focal length of each part will be

A convex lens has a focal length f. It is cut inti two parts along the dotted lines as shown ii figure. The focal length of each part will be …....... .

A equiconcave lens of focal length 15 cm is cut into two equal havles along dotted lines as shown in figure. What will be new focal length of each half.

A biconvex lens has a focal length of 10 cm. It is cut in half and two pieces are placed as shown. The focal length of the final combination is

A diverging lens of focal length F is cut into two equal parts each forming a planoconcave lens. What is the focal length of each part?

The equiconvex lens has focal length f. If is cut perpendicular to the principal axis passing through optical centre, then focal length of each half is