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Iceberg floats in sea water with a part of it submerged. The percentage fraction of the ice berg submerged is (density of ice = `0.9 g cm^(-3)`, density of sea water = `1.1 g cm^(-3)`)A. `18%`B. `12%`C. `10%`D. `8%` |
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Answer» Correct Answer - A `V` be the volume of the iceberg, `x be the volume out of sea water. The iceberg is floating in sea water then `C rho_(ice) g = (V-x)rho_(sea water) g` or `V xx 0.9 xx g = (V-x)1.1g` or `eta = 2.0 xx 10^(-5)kg m^(-1)s^(-1)` or `0.2 V = 1.1 x` `:. (x)/(V) = (0.2)/(1.1) ` Percentage of fraction of the volume of iceberg above the level of sea water `x/V xx 100 = (0.2)/(1.1) xx 100 = 18%` |
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