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 14‚âà√≠¬¨‚à´m. When its temperature is raised to 1000K, then wavelength at which maximum energy emitted it$
A.	14mm
B.	7‚âà√≠¬¨‚à´m
C.	2.8‚âà√≠¬¨‚à´m
D.	28mm
Answer» D. 28mm

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