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A goood radiograph is taken with a setting of: 120 mA, 200 ms, 8:1 grid. What...

A goood radiograph is taken with a setting of: 120 mA, 200 ms, 8:1 grid. What should the new time be (in seconds) to maintain exposure conditions, if a 10:1 grid is substituted and the current is held constant?

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