" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
P = 100/Sn - 100/PP
= 100/25 - 100/100
= 4 - 1 = 3 dioptri
100/25 - 100/100
= 4 - 1
= 3