The relation given by heat loss per second $Q = ks(T - T_{R}),$ Where S id the surface area of the body, $T_{R}$ is the temperature of its surrounding, k is a constant depending on the nature of the surface and Q denotes the heat lost from the body represents

• A.First law of thermodynamics
• B.Newton's law of cooling
• C.Dalton's law
• D.Second law of thermodynamics