" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
So = 15 cm
f = 30 cm
Si = ?
Si = So × F / So + F
= 15 × 30 / 15 + 30
= 450 / 45
= 10 cm (c)