The role of the project manager encompasses many activities including: 1  Planning and Defining Scope. 2  Activity Planning and Sequencing. 3  Resource Planning. 4  Developing Schedules. 5  Time Estimating. 6  Cost Estimating. 7  Developing a Budget. 8  Documentation. 9  Creating Charts and Schedules. 10  Risk Analysis. 11  Managing Risks and Issues.
(Answer #1). The critical angle is the largest angle at which light rays inside a diamond can escape. The more a material bends light, the higher the RI Refractive index, the smaller its critical angle.Because diamond has a high RI, it has only a small critical angle, 24.5 degrees.Answer #1). The critical angle is the largest angle at which light rays inside a diamond can escape. The more a material bends light, the higher the RI Refractive index, the smaller its critical angle.
Making the world better, one answer at a time. Diamonds sparkle when light enters them. Depending on the type of cut and the workmanship of the cutter a diamond can give off more or less sparkle. The diamond cutter cuts exact angles into the stone which makes the diamond sparkle.Diamonds as we know them sparkle because of the facets that are cut into them whilst shaping them. Natural diamonds that haven't yet been mined don't sparkle as such.he diamond cutter cuts exact angles into the stone which makes the diamond sparkle. Diamonds as we know them sparkle because of the facets that are cut into them whilst shaping them. Natural diamonds that haven't yet been mined don't sparkle as such.