" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
s' = 60 cm
M = s'/s = 60/30 = 2
h' = M. h = 2. 10 = 20cm
P= 100/f = 100/20 = 5 D