Question

find the position nature and size of the image formed by a convex lens of power 5d if object of size is 5 cm is placed at a distance of 40 cm.

Answer 1

Answer:

Given, u=-20cm

f=10cm

v=?

We know

f1=v1−u1

101=v1−20(−1)

v1=202−1

v=20cm

We know

magnification (M)=hohi=u−v

or,−2020=−1=hohi since,h0=5cm

so,hi=−5cm

nature = real image

Answer 2

Answer:

Reffer above the attachment