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What fraction of an iceberg lies beneath...

What fraction of an iceberg lies beneath the surface of the sea? Density of sea water `(rho)=1.028xx10^(3)kg//m^(3)`, density of ice `(d)``=0.917xx10^(3)kg//m^(3)`

A

163N

B

273N

C

119N

D

289 N

Text Solution

Verified by Experts

The correct Answer is:
A
Volume of cork = `(4)/(0.2 xx 10^3) m^3`
Weight of liquid displaced when cork is fully immersed in water, `V_(rho g) = 4/200 xx 1.03 xx 10^3 xx 9.8 N`
Lifting force `V sigma g - mg = 4/200 xx 1.03 xx 10^3 xx 9.8 - 4 xx 9.8 = 163 N`
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