Q.1 What are the conditions for total internal reflection? Q.2 What is the (V ) number of fiber or normalized frequency of fiber? Q.3 What are meridional rays? Q4 Why do we prefer step index single...

Extracted text: Q.1 What are the conditions for total internal reflection? Q.2 What is the (V ) number of fiber or normalized frequency of fiber? Q.3 What are meridional rays? Q4 Why do we prefer step index single mode fiber for long distance communication? Q.5 What are step index and graded index fibers? Q.6 What are the uses of optical fibers? Q.7 Define cutoff wavelength of the fiber. Q.8 What is Intramodal Dispersion? Q.9 What is waveguide dispersion? Q.10 Give the expression for numerical aperture in graded index fibers.