A Sinusoidal Electromagnetic Wave Has a Peak Electric Field Of 8.00

Multiple Choice

A sinusoidal electromagnetic wave has a peak electric field of $8.00 \mathrm { kV } / \mathrm { m }$ . What is the intensity of the wave? $\left( c = 3.0 \times 10 ^ { 8 } \mathrm {~m} / \mathrm { s } , \mu _ { 0 } = 4 \pi \times 10 ^ { - 7 } \mathrm {~T} \cdot \mathrm { m } / \mathrm { A } , \varepsilon _ { 0 } = 8.85 \times 10 ^ { - 12 } \mathrm { C } ^ { 2 } / \mathrm { N } \cdot \mathrm { m } ^ { 2 } \right)$

A) $170 \mathrm {~kW} / \mathrm { m } ^ { 2 }$
B) $11 \mathrm {~kW} / \mathrm { m } ^ { 2 }$
C) $85 \mathrm {~kW} / \mathrm { m } ^ { 2 }$
D) $21 \mathrm {~kW} / \mathrm { m } ^ { 2 }$