Question

1. building a bridge was difficult work involving several steps. complete the steps

•pullingout_____________________________ the sea •_____________shapes
•building the bridge ​

Answer 1

Answer:

please refer to the attached

Answer 2

Answer:

Two EM waves of nearly same (600 nm) wavelength are measured on a spectrum analyzer to have a frequency difference of 0.1 GHz. While travelling through a dispersive medium, an interferometer is used to measure their wavelength difference of 0.001 nm. What is the group velocity of the wave combination in that medium