Question

A convex lens produces an inverted image magnified three times of an object at a distance of focal length of the lens.

Answer 1

Answer:

hey mate can u plz write this whole ques ...

in this question there is a convex lens nd it produces an image ... the focal length will b negative nd object direction will be positive   and the image so formed will  be diminished so , the question that wht we hv t find so this data is insufficientplz send the pic of this question dear

Explanation:

Answer 2

Answer:

Given that:

u=-15cm

m=v/u=-3 (Image is inverted)

v=3u=+45cm

Now using the lens formula,

1/v-1/u=1/f

1/45 -(1/-15)=1/f

1/45 +1/15=1/f

f=45/4=+11.25 cm

and please write the hole question

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