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 = 1Oms2)
-
A.
2.0 x 10-6m3 -
B.
2.5×10-6m3 -
C.
3.0×10-6m3 -
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