Back to Practice
AIIMS2019Physics-Thermal Expansion

AIIMS 2019 Physics Coefficient of Expansion MCQ Question

Type: MCQ-numerical-Medium-Class 11

The coefficient of apparent expansion of mercury in a glass vessel is 153×10−6/∘C153 \times 10^{-6} /^\circ\text{C} and in steel vessel is 144×10−6/∘C144 \times 10^{-6} /^\circ\text{C}. If α\alpha for steel is 12×10−6/∘C12 \times 10^{-6} /^\circ\text{C}, then that of glass is

A

9×10−6/∘C9 \times 10^{-6} /^\circ\text{C}

B

6×10−6/∘C6 \times 10^{-6} /^\circ\text{C}

C

36×10−6/∘C36 \times 10^{-6} /^\circ\text{C}

D

27×10−6/∘C27 \times 10^{-6} /^\circ\text{C}

Correct Answer

Option A

Detailed Explanation

In this problem, the real expansion of a material is expressed as the sum of its apparent expansion and the vessel expansion. The calculations show that the coefficient of linear expansion (α) of glass is determined to be 9×10−6 °C−19 \times 10^{-6} \, \text{°C}^{-1} after equating the expansions of glass and steel vessels. Since options B, C, and D are not provided, they cannot be evaluated; however, the derivation clearly demonstrates the relationship between the thermal expansions of different materials, reinforcing the concept of how vessel materials influence the overall expansion in thermal dynamics.

Found an issue with this question?

Related Questions

Explore More Questions

All Physics QuestionsThermal Properties of Matter QuestionsAIIMS 2019 PYQ