A convex lens of focal lens f1 is held in contact with a concave lens of focal length f2. We can find rough focal length of the combination only when:
1) f1=f2
2) f1<f2
3) f1>f2
4) None of these
Answers
Answered by
1
Answer:
1) f1=f2.........nice to help u ☺️
Answered by
1
Answer:
Option 1 is right
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