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Q19.(i) The following figures show the path of light rays through three lenses marked L1,L2 and L3 and their focal points F1, F2 and F3, respectively.Out of L1, L2 and L3 lens/lenses is/are(a) only L1(b) only L2(C) only L3(d) Both L1 and L3​

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ANSWER:

CORRECT OPTION is d.

both L1 and L3



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