Answer: Federal communications commission ( FCC) .
Explanation: Federal communications commission( FCC) is a United States of American agency that was set up on June 19,1984. This agency was formed with the main aim of using radio, television, satellite and cable to promote safety of life and property through out the country. They also regulates the telecommunications industry in the United States including licensing and operation of all radio and television stations.
Answer:
A light beam incident on a diffraction grating consists of waves with two different wavelengths. The separation of the two first order lines is great if
the dispersion is great
