Question

The Ocrit angle is= 24.09 degrees

A beam of white light is incident on the surface of a diamond at an angle 02. (Figure 1) The index of refraction actually depends on the light's wavelength, so the different colors that comprise white light will spread out as they pass through the diamond (like in a prism). The index of refraction in diamond is nblue = 2.450 for blue light while the indices of refraction for the lower frequency colors are all smaller. Thus, as shown in the figure, the blue and red light are refracted at different angles inside the diamond. (Not shown are the orange, yellow, and green lights in between the red and the blue.) Note: the angles in the figure are not to scale. Part B A diamond is cut such that the angle between its top surface and its bottom surface is a. For a = 33° , find the largest possible value of the incident angle a such that the blue light is totally internally reflected off the bottom surface. Express your answer in degrees to three significant figures. A diamond will appear bluish in color if the blue light is internally reflected while the remaining colors are allowed to refract out. ► View Available Hint(s) V ACQ o 2 ? 0g = Submit Provide Feedback Next >

Answer 1