The automatic exposure control (AEC) with the thyristor set for a 400-speed screen-film system was used with an 800-speed film-screen system
a. The exposure will automatically adjust as the system speed changes to maintain density.
b. The exposure and kVp will automatically adjust as the system speed changes to maintain density and contrast.
c. The AEC does not automatically change. The image will be overexposed. The density will be adequate, but the contrast will be low.
ANS: C
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