Class 12 NEET Physics Optics Questions Part 1

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Question : 5 of 100
 
Marks: +1, -0
Two identical glass (μg=
3
2
)
equiconvex lenses of focal length f each are kept in contact. The space between that two lenses in filled with water (μw=
4
3
)
. The focal length of the combination is
[NEET 2016 P2]
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