1.Two spherical black bodies of radii r1r_1r1 and r2r_2r2 and with surface temperatures T1T_1T1 and T2T_2T2 respectively radiate the same power. Then r2r1\dfrac{r_2}{r_1}r1r2 isa.T1T2\dfrac{T_1}{T_2}T2T1b.(T1T2)2\left(\dfrac{T_1}{T_2}\right)^2(T2T1)2c.T2T1\dfrac{T_2}{T_1}T1T2d.(T2T1)2\left(\dfrac{T_2}{T_1}\right)^2(T1T2)2Login to continueOnly logged in users canattempt or see the solution.