Multiple Choice
If 40 mAs produce a good density film image when a 12:1 ratio grid is used,how much mAs should be used with a 5:1 ratio grid?
A) 6.7 mAs.
B) 16 mAs.
C) 96 mAs.
D) 100 mAs.
Correct Answer:

Verified
Correct Answer:
Verified
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