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Wave Optics

Focal length of a convex lens is 20 cm which is placed at a distance of 30cm from the apparatus. Another lens of 10cm radius must be placed at how much distanceon another side to produce an image:

  1. 60cm
  2. 50cm
  3. 30cm
  4. 12cm

explain the answer

Profile image of Arpan Mehta
17 Years agoGrade
Answers icon

1 Answer

Profile image of Pratham Ashish
17 Years ago

hi arpan ,

der is something missing in ur 2nd part of d queston as for 1st lens u will get a virtual image at 12 cm from d lens but u don't specify d full condition for d 2nd part.....plz check ur source once more...

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