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.
For Social Security retirement benefits, you must be between the ages of 62 and 70 to start collecting benefits. To check on your eligibility, see Nolo's article Checking you Social Security Earnings and Benefits or call the Social Security Administration at 800-772-1213. The Social Security Administration used to consider 65 to be full retirement age for the retirement benefit.