A container contains hot water at {100^o}C . If in time {T₁} temperature falls to {80^o}C and in t

English

Gujarati

Hindi

10-2.Transmission of Heat

easy

A container contains hot water at ${100^o}C$. If in time ${T_1}$ temperature falls to ${80^o}C$ and in time ${T_2}$ temperature falls to ${60^o}C$ from ${80^o}C$, then

A

${T_1} = {T_2}$

B

${T_1} > {T_2}$

C

${T_1} < {T_2}$

D

None

Solution

(c) Rate of loss of heat is directly proportional to the temperature difference between water and the surroundings.

Standard 11

Physics

Share

Similar Questions

A body takes $4$ minutes to cool from ${100^o}C$ to ${70^o}C$. To cool from ${70^o}C$ to ${40^o}C$ it will take …….. $\min.$ (room temperature is ${15^o}C$)

medium

A sphere, a cube and a thin circular plate, all made of the same material and having the same mass are initially heated to a temperature of $1000°C$ . Which one of these will cool first

medium

(IIT-1972)

Discuss the experiment verifying Newton's law of cooling.

hard

For which method of convection Newton's law of cooling can be used ?

medium

Cooling rate of a sphere of $600\,K$ at external environment $(200\,K)$ is $R$ . When the temperature of sphere is reduced to $400\,K$ then cooling rate of the sphere becomes

medium