A black body at 200 K is found to emit maximum energy at a wavelength – McqOptions

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1.	A black body at 200 K is found to emit maximum energy at a wavelength 14μm. When its temperature is raised to 1000K, then wavelength at which maximum energy emitted it?
A.	14mm
B.	7μm
C.	2.8μm
D.	28mm
Answer» D. 28mm

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