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NEET2015PhysicsMechanical Properties of SolidsActual

The value of coefficient of volume expansion of glycerin is 5 × 10 - 4  K - 1 . The fractional change in the density of glycerin for a rise of 40  o C in its temperature is:

Options

  1. A0.020
  2. B0.025
  3. C0.010
  4. D0.015

Correct answer

A. 0.020

Step-by-step solution

ρ = ρ 0 1 - γ ∆ t ∆ ρ ρ 0 = γ ∆ T = 5 × 10 - 4 40 = 0.02

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