A black body when hot, emits heat radiation of _____________ wavelengths?

Related Mcqs:

LMTD can’t be used as such without a correction factor for the_________________?

A. Multipass heat exchanger B. Baffled heat exchanger C. Condensation of mixed vapour in a condenser D. All A. B. and C....

In case of heat flow by conduction for a cylindrical body with an internal heat source, the nature of temperature distribution is_________________?

A. Linear B. Hyperbolic C. Parabolic D. None of these...

Open pan evaporators are preferred to be used, when the solution to be concentrated is_________________?

A. Scaling B. Highly viscous C. Corrosive D. Salty...

In SI units, thermal conductivity is expressed in__________________?

A. Watt/m.°K B. Watt/m2. °K C. Watt/m2. °K D. Watt/m4. °K...

Pick out the correct statement ?

A. Higher is the temperature of the radiating body, higher is the wavelength of radiation B. Logarithmic mean area is used for calculating the heat flow rate through a thick walled cylinder C. The wavelength corresponding to maximum mono-chromatic emissive power increases with rise in temperature D. Solid angle subtended by the finite surface at … Pick out the correct statement ?Read More...