Two thin lenses of focal lengths f1=20cm and f2=60cm are placed in contact. find the focal length f3 of the combined lenses. find also the focal length f of a third lens placed in contact with these two that would result in overall focal length f11=-40cm. (Asked Young)
Incoming search terms:
- class 9 science sample paper for sa 1 2012
- ncert text books enough for iit
- cbse sample paper for class 9 download(sa1)
- latest english sample papers for class 9 for sa1
- sample paper of class 9 science 2011 sa-1
- english sample papers for class 10 cbse sa1 2011
- IV question paper SA1 CBSE
- effects of electric current ppt
- iitjee new pattern questions
- human transparent bg
Link to this post!
