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.
You can start Social Security retirement as young as age 62 or wait to a later age. Full retirement age (FRA), sometimes called normal retirement age, is the Social Security Administration term for how old a person must be to receive retirement without age-based reductions. Benefits started prior to FRA are referred to as âearlyâ while those started past FRA are âlateâ.