Two thin lenses of focal lengths f1 and f2 are placed in contact with each other such that the combination behalves as a glass slab. Then how are f1 and f2 related to each other ? |
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(a) |
f1 = 1/ f2 |
(b) |
f2 = - f1 |
(c) |
f1 =f2 |
(d) |
f1 = |
Two thin lenses of focal lengths f1 and f2 are placed in contact with each other such that the combination behalves as a glass slab. Then how are f1 and f2 related to each other ? |
|||||||
(a) |
f1 = 1/ f2 |
(b) |
f2 = - f1 |
(c) |
f1 =f2 |
(d) |
f1 = |