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 2.5x10-6m3
  • C 3.0x10-6m3
  • D 2.0x 10-5m3
  • E 3.0 x 10-5m3
waec 1992physics

The correct answer is A. 2.0 x 10-6m3

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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