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Class 11 Physics Practice Test: Thermal Properties of Matter - Thermal Expansion
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Avg score: 67% • Most missed: “What is the value of coefficient of volume expansion for an ideal gas?”

Thermal expansion is the tendency of matter to change in shape, volume, and area in response to a change in temperature. Temperature is a monotonic function of the average molecular kinetic energy of a substance.

Class 11 Physics Practice Test: Thermal Properties of Matter - Thermal Expansion
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10 Questions

1. The value of coefficient of thermal expansion is always the same for a material. True or False?
2. What is the value of coefficient of volume expansion for an ideal gas?
3. A rod having α = 1*10-5per °C and length of 70cm has one of its end rigidly connected to another rod of length 1m and α= 0.5*10-5per °C. Find the new length of the two joined rods when their temperature is increased by 30℃.
4. What is the value of coefficient of volume expansion for an ideal gas?
5. A uniform metal sheet has a hole in its centre. What happens to hole when the sheet is uniformly heated?
6. It is possible that with decrease in temperature volume may increase. True or False?
7. It is possible that with decrease in temperature volume may increase. True or False?
8. Two strips of equal volume and length are joined together as shown in the diagram. What will happen when they are heated? Assume that the thermal coefficient of expansion of 1 is greater than that of 2.
9. What is the unit of coefficient of area expansion?
10. Two strips of equal volume and length are joined together as shown in the diagram. What will happen when they are heated? Assume that the thermal coefficient of expansion of 1 is greater than that of 2.

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