A beam of light has intensity `2. 8xx 10^(14) W m^(-2)` .Calculate the value of amplitude of electric field magnetic field of the beam .

Explanation

To solve the problem of calculating the amplitude of the electric field (E_m) and the magnetic field (B_m) of a beam of light with a given intensity, we can follow these steps:

### Step 1: Understand the relationship between intensity and electric/magnetic fields
The intensity (I) of an electromagnetic wave is given by the formula:
\[ I = \frac{1}{2} \epsilon_0 c E_m^2 \]
where:
- \( I \) is the intensity (in W/m²),
- \( \epsilon_0 \) is the permittivity of free space (\( 8.85 \times 10^{-12} \, \text{F/m} \)),
...