Which one of these types of filters is sometimes shaped like a wedge?

If an initial exposure is made using 800 mA, 0.02 sec, 16 mAs, 70 kVp, 58” SID, 4” OID, 5:1 grid ratio, 0.2 mm focal spot and 3.0 mm of filtration, with a 14 x 17 in field size, and the technologist changes the OID to 8” for a second exposure without changing any other factors, what differences would you expect to see in the second exposure?1) Increased IR exposure2) Decreased IR exposure3) Increased contrast4) Decreased contrast5) Increased spatial resolution6) Decreased spatial resolution7) Increased distortion8) Decreased distortion

Which of the following focused grids will allow for the greatest amount of centering and distance lattitude:

Spatial resolution improves with decreased _________ blur.

Calculate the new mAs if 15 mAs was originally used with a 16:1 grid and the repeated radiograph will use a 6:1 grid.

The y-axis for all emission spectra represents the:

Which combination of variables will result in a radiograph with the least amount of contrast?

The inverse square law defines the relationship between distance and:

Adding filtration in the path of the beam results in the x-ray emission spectrum:

All filtration can be expressed in terms of the thickness of