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AIIMS2005PhysicsUnits and Dimensions

Assertion : Specific gravity of a fluid is a dimensionless quantity. Reason : It is the ratio of density of fluid to the density of water.

Options

  1. AIf both assertion and reason are true and reason is the correct explanation of assertion
  2. BIf both assertion and reason are true but reason is not the correct explanation of assertion
  3. CIf assertion is true but reason is false
  4. DIf both assertion and reason are false.

Correct answer

A. If both assertion and reason are true and reason is the correct explanation of assertion

Step-by-step solution

Specific gravity is former name of relative density and relative density is the density of a substance divided by the density of water. Specific gravity = relative density = density of substance density of water = dimensionless.

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