Newton’s law of cooling, holds good only if the temperature difference between the body and the surroundings is
Newton’s law of cooling, holds good only if the temperature difference between the body and the surroundings is
- A
Less than ${10^o}C$
- B
More than ${10^o}C$
- C
Less than ${100^o}C$
- D
More than ${100^o}C$
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- [JEE MAIN 2014]
Four spheres $A, B, C$ and $D$ are of same radius but made of different metals. Their densities are in ratio $6 : 3 : 4 : 5$ and specific heats are in ratio $2 : 5 : 4 : 6$ . These are initially kept at the same temperature and placed in the same surroundings. The sphere which has the slowest rate of cooling is
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On what does the proportionality constant depends given in Newton's law of cooling.
On what does the proportionality constant depends given in Newton's law of cooling.