Physics
WAEC 1992
Solid weighs 0.040 N in air and 0.024 N when fully immersed in a liquid of density 800 kg m
-3. What is the volume of the solid? (g = 1Oms
2)
-
A.
2.0 x 10-6m3
-
B.
2.5x10-6m3
-
C.
3.0x10-6m3
-
D.
2.0x 10-5m3
-
E.
3.0 x 10-5m3
Correct Answer: Option A
Explanation
Upthrust = weight fluid displacement 0.040 - 0.024 = PVg
0.016 = 800 x V x 10
V = 2.0 x 106
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