Question

115.Sun radiates thermal radiation with maximum intensity at the wavelength lambda is equal to 0.5 meu m while its surface temperature is 6000 kelvin. if the sun cools down to a temperature where it emits only 81% of its present power, the maximum intensity will then emitted at wavelength Lambda 1)'=1.5. 2)'=0.5. 3)'=0.53. 4)'=0.17. (where ' is wavelength &all are in meu c)

Answer 1