The energy distribution of an ideal reflector at higher temperatures is largely in the range of ___________________?

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Temperature of steam at around 540°C can be measured by ____________________?

A. thermometer B. radiatiouv pyrometer C. thermistor D. thermocouple E. thermopile...

Thermal diffusivity of a substance is ____________________?

A. proportional of thermal conductivity B. inversely proportional to k C. proportional to (k) D. inversely proportional to k2 E. none of the above...

According of Kirchhoff’s law______________________?

A. radiant heat is proportional to fourth power of absolute temperature B. emissive power depends on temperature C. emissive power and absorptivity are constant for all bodies D. ratio of emissive power to absorptive power is maximum for perfectly black body E. ratio of emissive power to absorptive power for all bodies is same and … According of Kirchhoff’s law______________________?Read More...

According to Stefan-Boltzmann law, ideal radiators emit radiant energy at a rate proportional to___________________?

A. absolute temperature B. square of temperature C. fourth power of absolute temperature D. fourth power of temperature E. cube of absolute temperature...

According to Wien’s law, the wavelength corresponding to maximum energy is proportion to ________________?

A. absolute temperature (T) B. I2 C. f D. t E. 1/r...