The absolute temperatures of two black bodies are $2000 K$ and $3000 K$ respectively. The ratio of wavelengths corresponding to maximum emission of radiation by them will be
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(b) ${\lambda _m}T = {\lambda '_m}T'$ ==> $\frac{{{\lambda _m}}}{{{{\lambda '}_m}}} = \frac{{T'}}{T} = \frac{{3000}}{{2000}} = \frac{3}{2}$
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