An object weights m1 in a liquid of density d1 and that in liquid of density d2 is m2.The density d of the object is
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Given:
Density of liquid 1 = d₁
Density of liquid 2 = d₂
Weight of object in liquid 1 = m₁
Weight of object in liquid 2 = m₂
To Find:
The density d of the object.
Calculation:
- Let the volume of object be V.
- Using the concept of buoyancy, we get:
V(d−d₁)g=m₁g
& V(d−d₂)g=m₂g
- Now dividing the above equations we get:
(d − d₁) / (d − d₂) = m₁ / m₂
⇒ m₂ (d − d₁) = m₁ (d − d₂)
⇒ m₂d − m₂d₁ = m₁d − m₁d₂
⇒ d = (m₂d₁−m₁d₂) / (m₂−m₁)
- This is the required density of object.
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