Light reflects in the same manner that any wave would reflect. Light refracts in the same manner that any wave would refract. Light diffracts in the same manner that any wave would diffract. Light undergoes interference in the same manner that any wave would interfere. And light exhibits the Doppler effect just as any wave would exhibit the Doppler effect.
Snooker referees in this industry earned an annual mean wage of $27,050 that year. Those employed in other amusement and recreation industries earned an annual mean wage of $23,640, while those employed by elementary and secondary schools earned an annual wage of $36,320.nnual Wage. The BLS reported the median annual wage for snooker referees and umpires, referees and other sports officials in general was $22,820 in May 2010.
According to Simply Hired, the average annual salary for a soccer referee is $21,000 as of April 2011. However, the amount can increase depending on the referee's experience, the state and the benefits that come with the job.A referee's salary can be calculated on an hourly rate, where it will range from $15 to $17, which may translate up to $30,000 according to how many games the team plays every season. referee's salary can be calculated on an hourly rate, where it will range from $15 to $17, which may translate up to $30,000 according to how many games the team plays every season.