## Expansion of Solids - MCQ - Advance Level

Physics is an important subject in preparation for various Competitive exams. To keep a track of your preparation we have designed a small quiz of Advance Level Questions on Expansion of Solids. You have 10 minutes to solve the quiz, click the start timer button in order to start the timer and then click on submit button at the end to submit the quiz and view your scores and correct answers.

Q1. Two metal rods having same length and area of cross-section are fixed end to end between two rigid supports. The coefficients of linear expansion of the rods are Î±1 and Î±2 and their respective Young’s moduli are Y1 and Y2. The system is now cooled and it is observed that the junction between the rods does not shift at all for the condition

•  Y1Î±12 = Y2Î±22
•  Y1Î±2 = Y2Î±1
•  Y1Î±1 = Y2Î±2
•  Y1Î±22 = Y2Î±12

Q2. The coefficient of linear expansion of crystal in one direction is Î±1 and that in every direction perpendicular to it Î±2. The coefficient of cubical expansion is

•  Î±1 + Î±2
•  2Î±1 + Î±2
•  Î±1 + 2Î±2
•  None of these

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