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In English the phrase tip of the iceberg is used to mean a small visible fraction of something that is mostly hidden . For a real iceberg. What is this fraction. If the density of sea water is `1.03 kg//c c` and that of ice is `0.92 g//c c`?mA. `0.106`B. `10.6`C. `0.901`D. `0.801` |
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Answer» (a) For equilibrium `:.` weight =force of buoyancy or `mg=V_("in")sigmag` `rhoV=V_("in")sigma :. V_("in") =(rhoV)/(sigma)` `:. V_("out")=V-V_("in")=V(1-(rho)/(sigma))` Fraction `V_("out)/(V)=1-(rho)/(sigma)=(1-(0.92)/(1.03))=0.106` |
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