We combined a convex lens of focal length f 1 and concave lens of focal lengths f 2 and their combined focal length was F . The combination of these lenses will behave like a concave lens, if
A
f 1 > f 2
B
f 1 < f 2
C
f 1 = f 2
D
f 1 
f 2
f 2
Text Solution
Verified by ExpertsThe correct answer is:
A
F will be negative if 
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