1.

A converging and a diverging of equal focal length are placed co-axially in contact. Find the focal length and power of the combination.

Answer»

Solution :Let f and -f are be the focal length of the CONVERGING and DIVERGING lens respectively then focal length of the combination 1/F = 1/f- 1/f = 0
power of the combination p=1/F=0


Discussion

No Comment Found