GK
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Stefan’s Law
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Doppler’s Effect
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Kirchhoff’s Law
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Newton’s law of cooling
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Detailed explanation-1: -Newton’s law of cooling states that the rate of heat loss of a body is. proportional to the difference in temperatures between the body and its surroundings i.e., dQ/dt=−b1(T−Ts), d Q / d t = − b 1 ( T − T s ), where T is the temperature of the body, Ts is the temperature of the surrounding and b1 is heat transfer .
Detailed explanation-2: -According to Newton’s law of cooling the rate of loss of heat, −dQ/dt of the body is directly proportional to the difference of temperature.
Detailed explanation-3: -Fourier’s law states that the negative gradient of temperature and the time rate of heat transfer is proportional to the area at right angles of that gradient through which the heat flows. Fourier’s law is the other name of the law of heat conduction.
Detailed explanation-4: -According to Newton’s law of cooling, the rate of cooling of a body is directly proportional to the temperature difference between the body and the surroundings.