question 17 / 50\nx - ray beam quantity refers to the:\naverage energy of the x - ray beam\npenetrating…

question 17 / 50\nx - ray beam quantity refers to the:\naverage energy of the x - ray beam\npenetrating ability of the x - ray beam\nvelocity of photons in the x - ray beam\nnumber of photons in the x - ray beam

question 17 / 50\nx - ray beam quantity refers to the:\naverage energy of the x - ray beam\npenetrating ability of the x - ray beam\nvelocity of photons in the x - ray beam\nnumber of photons in the x - ray beam

Answer

Brief Explanations:

X - ray beam quantity is related to the number of x - ray photons. The average energy refers to quality, penetrating ability is also related to quality, and photon velocity in x - ray beam is a constant (speed of light) and not quantity.

Answer:

Number of photons in the x - ray beam