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Q. |
The characteristic invalid for heat radiation is that it travels – |
A. | in a straight line |
B. | in all directions |
C. | with the speed of light |
D. | heating the medium through which it passes |
Answer» C. with the speed of light | |
Explanation: Heat is a form of energy. An important property of heat is that it flows from a body at higher temperature to another body at lower temperature. |
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