NEET Physics Question - Thermal Physics

Assertion (A): For small temperature difference between body and surrounding, the rate of cooling directly proportional to the difference in temperature, known as Newton's law of cooling.

Reason (R): Newton's law of cooling is valid for heat transfer by radiation mode only.

Both (A) & (R) are true and the (R) is the correct explanation of the (A)

Both (A) & (R) are true but the (R) is not the correct explanation of the (A)

(A) is true but (R) is false

Both (A) and (R) are false

Solution:

Assertion (A) is the correct statement of Newton's Law of Cooling. Reason (R) is false, as the law applies to convection and can be approximated from radiation for small temperature differences, not exclusively for radiation.

Rankers Physics

Newton’s Law of Cooling Validity

Solution:

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