One is shortwave radiation or short wavelength radiation and the other is longwave radiation/long wavelength radiation. The diagram below shows the range of shortwave radiations. There is no proper definition of shortwave radiations as there is no standard cut off for near infrared radiations range.
Cottage cheese is a fresh cheese curd product with a mild flavor. It is drained, but not pressed, so some whey remains and the individual curds remain loose.
The answer is yes, you can freeze cottage cheese. Cheese is typically something that is perfect for freezing; however, soft cheeses are a little harder to freeze than harder cheeses (like Cheddar or Gouda). Cottage cheese is a very soft cheese and while it can be frozen, the texture may change some when it thaws.