- #1
Prashasti
- 63
- 2
Homework Statement
A thin double convex lens of focal length f is broken down into two halves at the axis. The two haves are then combined, as shown in the figure. What will be the focal length for the arrangements?
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Homework Equations
The Attempt at a Solution
For (i), I think that the answer is infinite because any incident ray will either go undeviated or will be laterally displaced - but the combination will not be able to converge it.
Is it right?
And, about the second arrangement - I think it must be 2f, but in my book, f/2 has been given as the answer!
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