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Question 30869
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Elasticity, Thermal Expansion, Calorimetry and Heat Transfer: Newton's Cooling MCQ

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Newton's CoolingMediumQuestion 30869

Question

Newton's law of cooling is valid when temperature difference between body and surroundings is:
  1. A
    Very large
  2. B
    Small
    Correct
  3. C
    Exactly zero
  4. D
    Negative

Correct answer

Small

Explanation

Newton's law of cooling (exponential approximation of Stefan's law) holds when ΔT << T_surroundings.

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