Radiology What is the average wavelength of the x-ray used in dentistry is: A 0.6-1A°. B 1-2A°. C 0.5-2A°. D 2-2.5A°. 💡 Explanation What is the average wavelength of the x-ray used in dentistry is: ✓ Correct Answer: A. 0.6-1A°.