Physics - Heat & Thermo Question with Solution | TestHub

End A of a rod AB of length $\mathrm{L}=1.5\mathrm{m}$ and of uniform cross-sectional area is maintained at some constant temperature. The heat conductivity of the rod is $\mathrm{k}=17\mathrm{J}/\mathrm{s}-{\mathrm{m}}^{\circ }\mathrm{K}$. The other end B of this rod is radiating energy into vacuum and the wavelength with maximum energy density emitted from this end is ${\lambda }_0=75000\mathring{A}$. The emissivity of the end B is $\mathrm{e}=1$. If the temperature of the end A (in K ) is 66 a . Then find the value of a . (Assuming that except the ends, the rod is thermally insulated)