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QPage 97: Q2: HC Verma: Concepts of Physics - Volume 2 Heat Transfer Page 97: Q2 Solution: In a room containing air, heat can go from one place to another

⚠️ Common Exam Traps & Conceptual Pitfalls

Students often assume that because the medium is air, heat transfer occurs only by convection (or conduction) and ignore radiation; however, thermal radiation is emitted by all surfaces regardless of the surrounding gas, and molecular collisions still allow conduction in gases. Remember to consider all three modes—conduction through the air, bulk motion of air (convection), and surface-to‑surface radiation—even in a seemingly simple room.

In a room containing air, heat can go from one place to another

Multiple Choice Options

  • A by conduction only
  • B by convection only
  • C by radiation only
  • D by all the three modes

Step-by-Step Verified Solution

**Answer:** (d) by all the three modes. **Step-by-Step Explanation:** In a room containing air, heat can transfer by conduction, convection, and radiation.

All Questions in this Chapter

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