Choose all the possible items match with CO2 application in dentistry. wavelength of 10600 nm Optical delivery system of articulated arm Maximum interaction with hard tissue Maximum interaction with soft tissue Wavelength of 1064 nm Optical delivery system of fiber optics

Three sheets of plastic have unknown indices of refraction. Sheet 1 is placed on top of sheet 2, and a laser beam is directed onto the sheets from above so that it strikes the interface at an angle of 26.6deg with the normal. The refracted beam in sheet 2 makes an angle of 31.4deg with the normal. The experiment is repeated with sheet 3 on top of sheet 2 and, with the same angle of incidence, the refracted beam makes an angle of 36.8deg with the normal. If the experiment is repeated again with sheet 1 on top of sheet 3, what is the expected angle of refraction in sheet 3? Assume the same angle of incidence.

What does the term Normal mean in the context of dealing with an optical surface Describe how light behaves in relation to the Normal when travelling between two interfaces in the following cases:  From a less dense to a denser medium