Objective


Equipment.


Assignment


1. What is the critical angle of refraction for light rays going from water to glass?

2. What is the critical angle of refraction for light rays going from glycerine (n = 1.47) into air?

3. The critical angle of a ray of light is measured as 48.8 degrees as it goes from an unknown liquid into air. Find the index of refraction of the the liquid. Using the internet determine what that liquid is