Which statement best describes the effect of increasing gray-scale dynamic range on the display?

Which statement best describes the effect of increasing gray-scale dynamic range on the display?

• A. More gray levels
• B. Fewer gray levels
• C. Higher frame rate
• D. Greater depth penetration

Answer: (A)

Increasing gray-scale dynamic range expands the range of brightness the display can show, which means more discrete gray values can be represented. In other words, you get more gray levels, allowing subtler differences in tone to be depicted. This is tied to how many quantization steps (bit depth) the display can use to separate brightness levels. The other options don’t describe tonal detail: frame rate affects motion, and depth penetration refers to how deep sound can travel in tissue, not the number of gray levels on the display.

Increasing gray-scale dynamic range expands the range of brightness the display can show, which means more discrete gray values can be represented. In other words, you get more gray levels, allowing subtler differences in tone to be depicted. This is tied to how many quantization steps (bit depth) the display can use to separate brightness levels. The other options don’t describe tonal detail: frame rate affects motion, and depth penetration refers to how deep sound can travel in tissue, not the number of gray levels on the display.