## Application of Thermal Expansion - MCQ - Basic 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 Basic Level Questions on Application of Thermal Expansion. 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 spheres of same size are made of the same material but one is solid and the other is hollow. They are heated to the same temperature

•  Both spheres expand equally
•  The solid sphere expands more
•  The hollow sphere expands more
•  Data is insufficient to arrive at a conclusion

Q2. A bimetallic strip is made up of two metals with different Î±

•  On heating, it bends towards the metal with high Î±
•  On heating, it bends towards the metal with low Î±
•  On cooling, it bends towards the metal with high Î±
•  On cooling, it bends towards the metal with low Î±

Q3. A metal rod of length L0, made of material of Young’s modulus Y, area A is fixed between two rigid supports. The coefficient of linear expansion of the rod is Î±. The rod is heated such that the tension in the rod is T

•  T ∝ L0
•  T ∝ A00
•  T ∝ A
•  T ∝ L00

A triangular plate has two cavities, one square and one rectangular as shown. The plate is heated

•  a increases, b decreases
•  a and b both increases
•  a and b increase, x and l decrease
•  a, b, x and l all increase

Q5. The coefficient of volume expansion of a solid is x times the coefficient of linear expansion. Then x is

•  1.5
•  2
•  2.5
•  3

Q6. The metal of a pendulum clock has a coefficient of expansion as 2x10-5/K Its period is 2s at 15°C. If the temperature increases to 25°C, shall the clock

•  Show correct time
•  Lose time
•  Gain time
•  First lose and then gain time

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