Find the amplitude of the electric field in a parallel beam of light of intensity 10 watt/`m^(2)` .

Explanation

To find the amplitude of the electric field (E) in a parallel beam of light with a given intensity (I), we can use the relationship between intensity, electric field amplitude, and the properties of electromagnetic waves. The formula we will use is:

\[ I = \frac{1}{2} \epsilon_0 c E^2 \]

Where:
- \( I \) is the intensity of the light (in watts per square meter, W/m²),
- \( \epsilon_0 \) is the permittivity of free space (\( 8.85 \times 10^{-12} \, \text{C}^2/\text{N} \cdot \text{m}^2 \)),
- \( c \) is the speed of light in vacuum (\( 3 \times 10^8 \, \text{m/s} \)),
...