The sun emits maximum radiation of 0.52 micron meter. Assuming the sun to be a black body, Calculate the emissive ability of the sun‚Äö√Ñ√∂‚àö√ë‚àö¬•s surface at that temperature$

The sun emits maximum radiation of 0.52 micron meter. Assuming the sun

1.	The sun emits maximum radiation of 0.52 micron meter. Assuming the sun to be a black body, Calculate the emissive ability of the sun‚Äö√Ñ√∂‚àö√ë‚àö¬•s surface at that temperature$
A.	3.47 * 10 <sup>7 </sup>W/m<sup>2</sup>
B.	4.47 * 10 <sup>7 </sup>W/m<sup>2</sup>
C.	5.47 * 10 <sup>7 </sup>W/m<sup>2</sup>
D.	6.47 * 10 <sup>7 </sup>W/m<sup>2</sup>
Answer» D. 6.47 * 10 <sup>7 </sup>W/m<sup>2</sup>

Discussion

No Comment Found

Related MCQs

A metal sphere of surface area 0.0225 m2 is in an evacuated enclosure whose walls are held at a very low temperature. Electric current is passed through resistors embedded in the sphere causing electrical energy to be dissipated at the rate of 75 W. If the sphere surfaces temperature is measured to be 560 K, while in steady state, calculate emissivity of the sphere surface
A furnace emits radiation at 2000 K. Treating it as a black body radiation, calculate the monochromatic radiant flux density at 1 micron m wavelength
Planck’s law is given by
The Planck’s constant h has the dimensions equal to
The sun emits maximum radiation of 0.52 micron meter. Assuming the sun to be a black body, Calculate the emissive ability of the sun’s surface at that temperature
A small body has a total emissive power of 4.5 kW/m2. Determine the wavelength of emission maximum
In the given diagram let r be the length of the line of propagation between the radiating and the incident surfaces. What is the value of solid angle W?
A_METAL_SPHERE_OF_SURFACE_AREA_0.0225_M<SUP>2</SUP>_IS_IN_AN_EVACUATED_ENCLOSURE_WHOSE_WALLS_ARE_HELD_AT_A_VERY_LOW_TEMPERATURE._ELECTRIC_CURRENT_IS_PASSED_THROUGH_RESISTORS_EMBEDDED_IN_THE_SPHERE_CAUSING_ELECTRICAL_ENERGY_TO_BE_DISSIPATED_AT_THE_RATE_OF_75_W._IF_THE_SPHERE_SURFACES_TEMPERATURE_IS_MEASURED_TO_BE_560_K,_WHILE_IN_STEADY_STATE,_CALCULATE_EMISSIVITY_OF_THE_SPHERE_SURFACE?$
A_FURNACE_EMITS_RADIATION_AT_2000_K._TREATING_IT_AS_A_BLACK_BODY_RADIATION,_CALCULATE_THE_MONOCHROMATIC_RADIANT_FLUX_DENSITY_AT_1_MICRON_M_WAVELENGTH?$
Planck‚Äö√Ñ√∂‚àö√ë‚àö¬•s law is given b?#

The sun emits maximum radiation of 0.52 micron meter. Assuming the sun to be a black body, Calculate the emissive ability of the sun‚Äö√Ñ√∂‚àö√ë‚àö¬•s surface at that temperature$

Discussion

No Comment Found

Related MCQs

Reply to Comment