A radiation producing device which emits radiation of one or a few discreet wavelengths is:

Related MCQs

• A radiation producing device which emits a broad spectrum of wavelengths is:
• A radiation producing device which emits a broad spectrum of wavelengths is:
• Of the following radiographic sources, which emits the most penetrating radiation?
• The amount of X radiation or gamma radiation is often spoken of as the of the radiation:
• Which of the following represents ultraviolet light of wavelengths which are potentially injurious (1 Å = 10-10m)
• The fluorescent dyes used in the liquid penetrant testing process are most active when energised with black light of what wavelengths? (Å stands for angstrom units)
• If the radiation intensity is 5.9 Gy/h (590 R/h) at a distance of 30.5 cm (1 foot) from a source, how far is it to the point where the radiation intensity is 0.02 Gy/h (2R/h)?
• If the radiation intensity is 5 Gy/h (500 R/h) at a distance of 152.4 cm (5 feet) from a source, how far is it to the point where the radiation intensity is 0.05 Gy/h (5 R/h)?
• The half value layer of lead for Co-60 is approximately 13 mm (0.5 in). If the radiation level on the source side of a 38 mm (1.5 in) lead plate is 0.64 Gy/h (64 R/h):, the radiation level on the opposite side is:
• At 61 cm (two feet) from a radiation source, radiation intensity is 3 Gy/h (300 R/h). What is the Intensity at 244 cm (8 feet) from the source?