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NEET 2015
Exam
NEET
Year
2015
Subject
Physics
Chapter
Mechanical Properties of Solids

NEET 2015 · Physics · Mechanical Properties of Solids

The value of coefficient of volume expansion of glycerin is 5 × 10...

The value of coefficient of volume expansion of glycerin is 5×10−4K−15 \times {10}^{- 4}{K}^{- 1}. The fractional change in the density of glycerin for a rise of 40oC{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=ρ0ρ = {ρ}_{0}\left(1 - \gamma ∆ t\right)<br/><br/><br/><br/>\dfrac{∆ ρ}{{ρ}_{0}} = \gamma ∆ T = \left(5 \times {10}^{- 4}\right)\left(40\right) = 0.02
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