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
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})