Determine the spectral existence of a body by using plank’s law, if the wave length is given as 456m and the absolute temperature is 765K.

Determine the spectral existence of a body by using plank’s law, if

1.	Determine the spectral existence of a body by using plank’s law, if the wave length is given as 456m and the absolute temperature is 765K.
A.	3.6*1030 W / sq. m
B.	4.6*1030 W / sq. m
C.	6.6*1030 W / sq. m
D.	3.6*1030 W / sq. m
Answer» B.