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Absorption and Emission :: Discussion
| 6. | In order that the heat flows from one part of a solid to another part, what is required? | |
| A. | Uniform density | |
| B. | Temperature gradient | |
| C. | Density gradient | |
| D. | Uniform temperature | |
| Answer: Option B | |
| Explanation: | |
|
As heat flows from higher temperature to lower temperature, so a temperature gradient is required. |
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| Tutorial Link: |
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