The full range of wavelengths for light is called the electromagnetic spectrum.. The image and table below show which wavelength ranges in the electromagnetic spectrum correspond to which types of light. Constants. 1  Home. 2  Physics Tools. 3  Contact Us. 4  Forums.
Social Security benefits account for 50 percent or more of retirement income for three out of five beneficiaries receiving Social Security benefits who are age 65 or older. Nearly one out of four received all of their income from Social Security in 2012.
Full Retirement Age. The FRA is the earliest age at which workers can claim full, unreduced Social Security retired-. worker benefits.1 The FRA is also referred to as the ânormal retirement ageâ in some publications. For most of Social Securityâs history, the FRA was 65. Why the age of 65 was chosen for the.