3. Take sugar, oil, corn syrup, glass, and water. Pour the water into the glass and then add each of the above substances one after the other. Observe and note your observations. And give the reason for your observation.

When a vertical beam of light passes through a transparent medium, the rate at which its intensity i decreases is proportional to i(t), where t represents the thickness of the medium (in feet). in clear seawater, the intensity 3 feet below the surface is 25% of the initial intensity i0 of the incident beam. what is the intensity of the beam "10" feet below the surface? (give your answer in terms of i0. round any constants or coefficients to five decimal places.)