Mht Cet
Ray Optics
MHT CET 2019 2nd May Evening Shift
MCQ+1 / -02019
A convex lens of focal length ' $f$ ' is placed in contact with a concave lens of the same focal length. The equivalent focal length of the combination is
Mht Cet
MHT CET 2019 2nd May Evening Shift
A convex lens of focal length ' $f$ ' is placed in contact with a concave lens of the same focal length. The equivalent focal length of the combination is