1.

A black body at 200 K is found to exit maximum energy at a wavelength of \[14\mu m\]. When its temperature is raised to 1000K, the wavelength at which maximum energy is emitted is               [RPMT 1998; MP PET 1991; BVP 2003]

A.            \[14\mu m\]                        
B.            \[70\mu F\]
C.            \[2.8\mu m\]
D.            \[2.8mm\]
Answer» D.            \[2.8mm\]


Discussion

No Comment Found

Related MCQs