The formula ln(I /I 0 ) = h is used in estimating the thickness of the ozone

The formula ln(I /I₀) = −βh is used in estimating the thickness of the ozone layer. Here, I₀ is the intensity of a wavelength of sunlight before reaching Earth’s atmosphere, I is the intensity of the light after passing through h cm of the ozone layer, and β is a constant. Solve for I.