Heat Transfer Quiz - CBSE Class 11 Physics
Free practice quiz: Heat Transfer (CBSE Class 11 Physics). 36 multiple-choice questions with answers and explanations. Play online, no sign-up needed.
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What is the primary method of heat transfer by which heat is transferred through a solid material?
- Conduction
- Convection
- Radiation
- Evaporation
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Answer: A. Conduction
In thermal radiation, what does the term 'black body' refer to?
- A perfect reflector
- A perfect absorber
- A body that emits less radiation
- A body that emits more radiation
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Answer: B. A perfect absorber
When heat is conducted along a material, the kinetic energy of the particles does what?
- Remains unchanged
- Increases
- Decreases
- Varies randomly
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Answer: B. Increases
What is the relationship between the thermal conductivity of a material and its insulating properties?
- Higher thermal conductivity means better insulation
- Lower thermal conductivity means better insulation
- Thermal conductivity has no effect
- All materials are equally insulated regardless of conductivity
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Answer: B. Lower thermal conductivity means better insulation
What is the primary reason for using a vacuum in thermos flasks?
- To prevent convection
- To increase radiation
- To enhance conduction
- To reduce air pressure
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Answer: A. To prevent convection