Question

convex lens of focal length 10cm is placed at a distance of 12cm from a wall how far from lens should ban object be placed so as to form its real image on the wall
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Answer 1

Answer:

HERE f=+10cm ; u= -12cm

1/10=-(1/-12)+1/v

1/10-1/12=1/v

6/60-5/60=1/v

1/60=1/v

v=60

Explanation:mark me AS THE BRAINLIEST