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Home  >>  JEEMAIN and AIPMT  >>  Physics  >>  Class11  >>  Thermodynamics
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Light from a source has its maximum intensity near the wavelength 500 nm . Assuming the body to be a black body calculate the temperature at its surface ?


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Answer : $5760 K$
Explanation :
For a blackbody , $\;\lambda T=constant = b \;$ (wien's displacement law)
Since $\;b=2.88 \times 10^{-3} mK$
$T=\large\frac{2.88 \times 10^{-3}}{500 \times 10^{-9}}=5760 K$
answered Mar 13, 2014 by yamini.v

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