Answer with Explanation:
We are given that
Electric field,E=83.7V/m
Time,t=15.5 s
Area,A=[tex]0.0225m^2[/tex]
We have to find the intensity of the wave and energy .
Intensity,I=[tex]\frac{1}{2}c\epsilon_0E^2[/tex]
Where [tex]c=3\times 10^8m/s[/tex]
[tex]\epsilon_0=8.85\times 10^{-12}[/tex]
Substitute the values
[tex]I=\frac{1}{2}(3\times 10^8\times 8.85\times 10^{-12}\times (83.7)^2)=9.3W/m^2[/tex]
Energy,[tex]E=IAt[/tex]
Substitute the values
[tex]E=9.3\times 0.0225\times 15.5=3.24 J[/tex]
