Question

A 2 cm high object is placed at a distance
of 12 cm in front of a a convenx lens of focal
length position and fire of image.​

Answer 1

Answer:

Focal length of convex lens, f=8 cm

Object distance, u=−12 cm

Using lens formula

v

1

−

u

1

=

f

1

where v is the image distance.

∴

v

1

−

−12

1

=

8

1

⟹ v=+24 cm

(+ve sign indicates that image is formed behind the lens)

So, image is formed at a distance 24 cm behind the convex lens

Explanation:

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