Achild has accidentally ingested a magnet. your x-ray machine allows several kvpsettings between 50kv and 120kv. is x-ray imaging a suitable modality in the sense that good contrast can be achieved between the magnet and surrounding tissue/bone? why / why not?

wavelegth as in spectrum red oygbiv

luster is not a good characteristic to use by itself because luster is the property of minerals that indicates how much the surface of a mineral reflects light. the luster of a mineral is affected by the brilliance of the light used to observe the mineral surface.