Question

Iceberg floats in sea water with a part of it submerged. The percentage fraction of the ice berg submerged is (Density of ice = 09$\mathrm { g } \mathrm { cm } ^ { - 3 }$ , density of sea water $= 1.1 \mathrm {~g} \mathrm {~cm} ^ { - 3 }$)

• A. 18%
• B. 12%
• C. 10%
• D. 8%

Answer 1

Answer: (A)

18%

Answer 2

V be the volume of the iceberg, x be the volume out of sea water,

The iceberg is floating in sea water then

Or

Or $0.9 \mathrm {~V} = 1.1 \mathrm {~V} - 1.1 \mathrm { x }$

$= 0.2 \mathrm {~V} = 1.1 \mathrm { x }$

$\therefore \frac { \mathrm { x } } { \mathrm { V } } = \frac { 0.2 } { 1.1 }$