According to Newton's law of cooling, the heat energy lost per unit area of a body depends on the I. Surface area II. Nature of the surface III. Temperature of the surface IV. Excess temperature over the surroundings
A. I and II only B. II and IV only C. I,II and III D. I, II and IV
Correct Answer: C
Explanation
The rate of cooling of liduid according to Newton's law of cooling depends on: - Temperature of the liquid - Temperature of the enclosure - The area of the exposed surface - The nature and extent of the surface of the containing vessel
