If a plastic sphere floats in water (density = 1000kgm 3 ) with 0.5 of
PHYSICS
JAMB 1992
If a plastic sphere floats in water (density = 1000kgm3) with 0.5 of its volume submerged, and floats in oil with 0.4 of its volume submerged the density of the oil is
- A. 800kgm3
- B. 1200kgm3
- C. 1250kgm3
- D. 2000kgm3
Correct Answer: A. 800kgm3
Explanation
R.d = \(\frac{0.4}{0.5}\) = 0.8
0.8 = \(\frac{\text {Density of oil}}{\text{Density of water}}\)
0.8 = \(\frac{\text {Density of oil}}{1000}\)
Density of oil = 800kgm3
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