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0 votes
47.0k views
in Physics by (48.1k points)
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In the figure shown here, what is the equivalent focal length of the combination of lenses  (Assume that all layers are thin) ?

(1) -40 cm

(2) -100 cm

(3) -50 cm

(4) 40 cm

1 Answer

+1 vote
by (49.2k points)
selected by
 
Best answer

Correct option is (2) -100 cm

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