An exposed radiographic film which transmits 1% of the light incident on it has what density:

Related MCQs

• A radiographic exposure with 3700 GBq (100 Ci) source of Ir-192 using source to film distance of 60 cm results in a radiation intensity of 0.12 Gy/h (11.8 R/h) and a radiographic density of 2.5. The intensity of radiation needed to obtain the same density when the source to film distance is changed to120 cm is:
• A radiograph is made using film X with an exposure of 10 mA-min. Film density obtained in the area of interest is 1.0. If it is desired to achieve a density of 2.0 in the area of interest, what exposure is required? (Log relative exposure = 1.1 for a density of 1.0 and 1.62 for a density of 2.0)
• A radiograph is made using film X with an exposure of 10 mA-min. Film density in the area of interest is 1.0. If it is desired to achieve a density of 2.0 in the area of interest, what exposure is required? (Log relative exposure = 1.1 for a density of 1.0 and 1.62 for a density of 2.0)
• A low density image of the letter ‘B’ on a radiographic film would probably be caused by:
• The maximum film density to which the radiograph should be exposed is dependent upon:
• ‘Film contrast’ is the inherent ability of a film to show for a given change in film exposure.
• When a longitudinal wave is incident upon an inclined interface and is refracted at ninety degrees, the angle of the incident longitudinal wave is called:
• Which of the following viewing conditions is most desirable for interpreting radiographic film?
• Which of the following techniques would probably reduce the amount of back scattered radiation reaching the film during a radiographic exposure?
• Which of the following techniques would probably reduce the amount of scattered radiation reaching the film during a radiographic exposure?