A measuring Cylinder is filled with 40mL of water. A solid with mass 20g is then lowered into the cylinder. The water level rises to 60mL. Determine the density of the solid in g/mL.
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Answer:
1gm/mL.
Explanation:
According to Archimedes principle ,
ρgH = Mg [UPTHRUST ON BODY = WEIGHT OF LIQUID OUT. ]
Here, H = FINAL HEIGHT - INITIAL HEIGHT = 60-40 = 20mL
Cancelling out g on both sides,
ρH = M ⇒ ρ = M/H ⇒ ρ = 20g/20mL = 1gm/mL.
It's the density of water. is not it ?
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