Two stars emit maximum radiation at wavelength $3600Å$ and $4800Å$ respectively. The ratio of their temperatures is
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(c) $\frac{{{T_1}}}{{{T_2}}} = \frac{{{\lambda _{{m_2}}}}}{{{\lambda _{{m_1}}}}} = \frac{{4800}}{{3600}} \Rightarrow \frac{{48}}{{36}} = \frac{4}{3}$
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