Question

If an object is placed 8 cm in front of a convex lense having focal
length 6cm, draw a ray diagram to show position and nature of tthe image so formed
image so formed.
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Answer 1

1/v=1/24

Explanation:

From lens Formula we get 1/f=1/v-1/u

1/f+1/u=1/v

Now object distance from optic centre=-8cm

and focal length=6cm

1/v=1/6-1/8

1/v=1/24