A surface for which emissivity is constant at all temperatures and th – McqOptions

MCQOPTIONS

1.	A surface for which emissivity is constant at all temperatures and throughout the entire range of wavelength is called
A.	Opaque
B.	Grey
C.	Specular
D.	Diathermanous
Answer» C. Specular

Discussion

No Comment Found

Related MCQs

A surface for which emissivity is constant at all temperatures and throughout the entire range of wavelength is called
Consider the previous problem, determine the maximum monochromatic emissive power of the sun’s surface
A small black body has a total emissive power of 4.5 k W/m2. In which range of the spectrum does this wavelength fall?
A small body has a total emissive power of 4.5 kW/m2. Determine its surface temperature of maximum emission
The relationship (Wavelength) MAX T = constant, between the temperature of a black body and the wavelength at which maximum value of monochromatic emissive power occurs is known as
A_SURFACE_FOR_WHICH_EMISSIVITY_IS_CONSTANT_AT_ALL_TEMPERATURES_AND_THROUGHOUT_THE_ENTIRE_RANGE_OF_WAVELENGTH_IS_CALLED?$
Four identical pieces of copper painted with different colors of paints were heated to the same temperature and then left in the environment to cool. Which of the following paint will give fast cooling?
A furnace emits radiation at 2000 K. Treating it as a black body radiation, calculate the wavelength at which emission is maximum
Consider the previous problem, determine the maximum monochromatic emissive power of the sun‚Äö√Ñ√∂‚àö√ë‚àö¬•s surface$
The sun emits maximum radiation of 0.52 micron meter. Assuming the sun to be a black body, Calculate the surface temperature of the sun