Two cylinders of same cross-section and length L but made of two material of densities d 1 are cemented together to form a cylinder of length 2L. The combination floats in a liquid of density d with a length L/2 above the surface of the liquid. If d 1 < d 2 then -
A
d 1 < 
d
d
B
> d 1
C
> d 1
D
d < d 1
Text Solution
Verified by ExpertsThe correct answer is:
A
Net weight = upthrust
(d 1 + d 2 ) LAg = 
LAdg
(d 1 + d 2 ) = 
d
As d 1 < d 2
∴ d 1 < 
d
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