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.
And that's just one example of many that potential refs will be asked to perform. World Cup Referee Salary : In 2014, the average referee will be paid $35,000 â $40,000 for their work at the World Cup.Roughly 10 refs will actually earn $50,000 depending on their seniority.These 10 refs have the most experience and will be used at the highest priority matches.nd that's just one example of many that potential refs will be asked to perform. World Cup Referee Salary : In 2014, the average referee will be paid $35,000 â $40,000 for their work at the World Cup.