McqMate
| Q. |
Which law states, “The rate of loss of heat by a body is directly proportional to the difference in temperature between the body and the surroundings.” |
| A. | Doppler’s Effect |
| B. | Newton’s law of cooling |
| C. | Kirchhoff’s Law |
| D. | Stefan’s Law |
| Answer» B. Newton’s law of cooling | |
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Explanation: Kirchhoff’s Law – Kirchhoff’s Law signifies that good absorbers are good emitters. Stefan’s Law – The radiant energy emitted by a black body per unit area per unit time is directly proportional to the fourth power of its absolute temperature. |
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