Question

At what distance should an object
le palaced from a convient lens
of focal length 18 an to obtain
an image at ay an from it
on the other sick. What will
de the manification prodadurad
in this cable​

Answer 1

Answer:

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Answer 2

Answer:

By using lens formula

v

1 − u1 = f1

where v=24cm ,f=18cm

24

1 −

uu = 18

1

from this we get u=−72cm

magnification of lens is m=

u

v

m=

−72

24

=−

3

1