A black body emits radiations of maximum intensity at a wavelength of 5000 Å , when temperature of

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10-2.Transmission of Heat

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A black body emits radiations of maximum intensity at a wavelength of $5000 \mathring A$, when the temperature of the body is ${1227^o}C$. If the temperature of the body is increased by ${1000^o}C$, the maximum intensity of emitted radiation would be observed at..... $ \mathring A,$

A$2754.8$

B$3000$

C$3500$

D$4000$

Solution

${\lambda _{{m_2}}} = \frac{{{T_1}}}{{{T_2}}} \times {\lambda _{{m_1}}} = \frac{{1500}}{{2500}} \times 5000 = 3000 \mathring A$

Standard 11

Physics

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