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clear
//Given
E=2.5*10**5 //lm/m**2
r=1.5*10**11 //m
//Calculation
//
l=E*r**2
a=4*%pi*l
//Result
printf("\n (i) Luminous intensity is %0.3f cd", l)
printf("\n (ii) Luminous flux of the sun is %0.3f *10**28 lm",a*10**-28)
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