Gujarati
Hindi
10-2.Transmission of Heat
normal

Star$ S_1$ emits maximum radiation of wavelength  $420$ $nm$ and the star $S_2$ emits maximum radiation of wavelength $560 \,\,nm$, what is the ratio of the temperature of $S_1$ and $S_2$ :

A

$4/3$

B

$(4/3)^{1/4}$

C

$3/4$

D

$(3/4)^{1/2}$

Solution

Wien's displacement law states that$:$

$\lambda_{m} T=b(\text { constant })$

i.e. $\lambda_{1} T_{S_{1}}=\lambda_{2} T_{S_{2}}$

$\frac{T S_{1}}{T S_{2}}=\frac{\lambda_{2}}{\lambda_{1}}=\frac{560}{420}=\frac{4}{3}$

Standard 11
Physics

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