Question

two stars radiate maximum energy at wavelengths 3.6* 10*-5cm and 4.8*10*-5cm respectively. what is the ratio of their temperatures?

Answer 1

Explanation:

#BAL

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Two stars radiate maximum energy at wavelengths 3.6* 10^(-5) and 4.8*10^(-5) respectively. what is the ratio of their temperatures?

$\huge\red{\underline{\underline{\bf Answer:-}}}$

• Note

This is the case to use wien's law of displacement

Wien's law of displacement says that,

$T \propto \frac{1}{\lambda}$

$So, \\ \\ Ratio \: \: will \: \: be \implies \\ \\ \leadsto \: \: \: \: \: \frac{t1}{t2} = \frac{ \lambda 2}{ \lambda 1} \\ \\ \implies \frac{t1}{t2} = \frac{ \cancel{4.8\times {10}^{ ( - 5)}} }{ \cancel{3.6\times {10}^{( - 5)}} } = \frac{4}{3} \\ \\ \implies \huge \boxed{ \frac{t1}{t2} = \frac{4}{3} }$

#BAL