JEE AdvancedMedium
Q.Three lenses of focal lengths f1, f2, f3 are in contact. Equivalent focal length is
a
f1 + f2 + f3
b
1/(1/f1 + 1/f2 + 1/f3)
c
f1 f2 f3
d
none
Correct Answer: Option B
The correct solution involves applying the fundamental concept to derive the final value step by step...