A plane electromagnetic wave propagating in $x$ -direction is described by
$E_{y} = (200 Vm^{- 1}) sin (1.5 \times 10^{7} t - 0.05 x);$ The intensity of the wave is : (Use $ϵ_{0} = 8.85 \times 10^{- 12} C^{2} N^{- 1} m^{- 2}$ )

Question

A plane electromagnetic wave propagating in x-direction is described by E_y= (200 Vm^-1 ) sin ⁡(1.5 10^7t-0.05x) ; The intensity of the wave is : (Use ϵ_0=8.85 10^-12C^2 N^-1 m^-2 )

Accepted Answer

Correct answer: B. (b) I= 12 _0E_0^2 cI= 12 8.85 10^-12 4 10^4 3 10^8I=53.1 W/m^2

$A plane electromagnetic wave propagating in x -direction is described by E_{y} = (200 Vm^{- 1}) sin (1.5 \times 10^{7} t - 0.05 x); The intensity of the wave is : (Use ϵ_{0} = 8.85 \times 10^{- 12} C^{2} N^{- 1} m^{- 2})$

Solution

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