Two thin lens have a combined power of 10 D in contact When

Last updated: 6/25/2023

Two thin lens have a combined power of 10 D in contact When separated by 20 cm their equivalent power is 6 25 D Find their individual powers in dioptres A B C D 3 5 and 6 5 5 and 5 7 5 and 2 5 9 and 1 Correct Answer