If intensity of light at a point in space is `30 W//m ^2 ` then what would be the amplitude of magnetic field at that point .

Explanation

To find the amplitude of the magnetic field (B₀) at a point where the intensity (I) of light is given as 30 W/m², we can use the relationship between intensity and the amplitude of the magnetic field in electromagnetic waves.

### Step-by-Step Solution:

1. **Understand the Relationship**: The intensity (I) of an electromagnetic wave is related to the amplitude of the electric field (E₀) and the amplitude of the magnetic field (B₀). The formula relating intensity to the amplitude of the magnetic field is:
\[ I = \frac{1}{2} \frac{B_0^2}{\mu_0} c \]
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