UV filters allow most wavelengths of light through the lens, but they cancel out light with in the ultraviolet part of the spectrum. These filters help reduce blur when used in bright light and some people use them for no other reason than to protect the main part of their objective on the front.
Polarizing filters usually have a grey look about them and are great for filtering reflections from none metallic surfaces such as glass or water. They usually colorize shot by producing colours deeper.
This is not necessarily a bad thing but because a good polarizing filter can produce a wonderful deep blue sky that rely entirely on capturing landscape. These Neutral Density Filters do not filter uniformly throughout shooting, be aware that this can be quite noticeable when shooting with a wide-angle lens.
Image Source: Google
Only ever use a circular polarizing filter on your camera, as linear filters mess with auto focus systems and the measurement of the camera
Filters ND (neutral density) are designed so that they do not affect the colour of a photograph in any way. They filter all light equally and effectively stop the shooting down of a predetermined amount. They are available in 1 stop, 2 and 3 varieties stop, even though they are often called ND2, ND4 and ND8, respectively.