NCERT · Class 11 · Physics · Thermal Properties of MatterNewton's law of cooling is strictly applicable when the temperature difference between the cooling body and its surroundings is:
Step-by-Step Solution
Newton's law of cooling states that the rate of loss of heat is directly proportional to temperature difference, which holds true only for small temperature differences (usually $< 30^\circ\text{C}$). Hence, option A is correct.
Detailed Options Breakdown
Option : Very small (Correct Answer)
Correct choice. Refer to the step-by-step verified solution guidelines above for details.
Option 1: Very large
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Thermal Properties of Matter.
Option 2: Infinitely large
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Thermal Properties of Matter.
Option 3: Zero only
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Thermal Properties of Matter.
💡 Study Guide: This question tests core syllabus concepts from Thermal Properties of Matter. For formulas, key summaries, and mock exam reference guides, read the full Thermal Properties of Matter Revision Notes.