<prompt> To which of the following, milliamperes-second is not related to?QuantityBlackening of filmContrastQuality  <response>: mAs is directly propoional to quantitynumber of X-rays , blackening of film and contrast. Milliampere-seconds more commonly known as mAs is a measure of radiation produced milliamperage over a set amount of time seconds an x-ray tube. It directly influences the radiographic density, when all other factors are constant. 