Answer:
Time = 3.947 × [tex]10^{5}[/tex] s
Explanation:
given data
intensity = 1.36 kW/m²
energy = 2.55 × [tex]10^{9}[/tex] J
area = 4.75 m²
solution
as energy is express as
Energy E = PT
here P is intensity and T is time
and here after some time power of radiation deliver is delivering on area that is
E = P*AT
so T = [tex]\frac{E}{p*A}[/tex] ...............1
put here value
T = [tex]\frac{2.55*10^9}{1.36*10^3*4.75}[/tex]
T = 3.947 × [tex]10^{5}[/tex] s
