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A body whose mass is 2kg and has a volume of 500cm3 just floats when...

Physics
JAMB 1988

A body whose mass is 2kg and has a volume of 500cm3 just floats when completely immersed in a liquid. Calculate the density of the liquid

  • A. 4.0 x 102kgm-3
  • B. 4.0 x 103kgm-3
  • C. 1.0 x 103kgm-3
  • D. 1.0 x 106kgm-3
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Correct Answer: Option B
Explanation

since the object floats, density of liquid = density of object

converting 500cm3 to m3,

\(\frac{500}{10^{6}} = 5 \times 10^{-4}m^{3}\)

D = \(\frac{m}{v}\)

= \(\frac{2}{5 \times 10^{-4}}\)

=\(4.0 \times 10^{3}kgm^{-3}\)


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