Twelve conducting rods form the riders of a uniform cube of side $'l'.$ If in steady state, $B$ and $H$ ends of the rod are at $100^o C$ and $0^o C$. Find the temperature of the junction $'A'$ ....... $^oC$
Advanced
Download our appand get started for free
Experience the future of education. Simply download our apps or reach out to us for more information. Let's shape the future of learning together!No signup needed.*
Similar Questions
- 1Two sphere of radius $R_1$ and $R_2$ have densities ${\rho _1}$ and ${\rho _2}$ and specific heat $S_1$ and $S_2$ if they are heated to the same temperature the ratio of their rates of falling temperature will beView Solution
- 2Consider two insulating sheets with thermal resistances $R_1$ and $R_2$ as shown. The temperatures $\theta $ isView Solution
- 3Three stars $A, B, C$ have surface temperatures $T _{A} ,T _{B}, T _{C}$ respectively. Star $A$ appears bluish, star $B$ appears reddish and star $C$ yellowish. Hence,View Solution
- 4As per the given figure, two plates $A$ and $B$ of thermal conductivity $K$ and $2 K$ are joined together to form a compound plate. The thickness of plates are $4.0 \,cm$ and $2.5 \,cm$ respectively and the area of cross-section is $120 \,cm ^{2}$ for each plate. The equivalent thermal conductivity of the compound plate is $\left(1+\frac{5}{\alpha}\right) K$, then the value of $\alpha$ will be_______View Solution
- 5Assuming the sun to have a spherical outer surface of radius $r$, radiating like a black body at temperature $t^o C$, the power received by a unit surface, (normal to the incident rays) at a distance $R$ from the centre of the sun isView Solution
where $\sigma$ is the Stefan's constant.
- 6If the absorption and reflection co-efficients of a surface of a body are $0.4$ and $0.6$ respectively, thenView Solution
- 7View SolutionWoollen clothes are used in winter season because woolen clothes
- 8The temperature of a piece of iron is ${27^o}C$ and it is radiating energy at the rate of $Q\;kW{m^{ - 2}}$. If its temperature is raised to ${151^o}C$, the rate of radiation of energy will become approximately ....... $Q\,kW\,{m^{ - 2}}$View Solution
- 9If transmission power of a surface is $\frac{1}{9}$, reflective power is $\frac{1}{6}$, then what is its absorptive power?View Solution
- 10$Assertion :$ It is hotter over the top of a fire than at the same distance of the sides.View Solution
$Reason :$ Air surrounding the fire conducts more heat upwards.