The more bits per pixel:

The more bits per pixel:

• A. The better the resolution
• B. The higher the pixel density
• C. The more shades of gray
• D. Higher reliability

Answer: (C)

Increasing bits per pixel raises how many tonal values a pixel can represent. In grayscale imaging, that directly translates to how many shades of gray you can distinguish—from black to white with progressively lighter grays. So more bits per pixel means more subtle gray levels, which is why this option is correct. This doesn’t change how many pixels there are (spatial resolution) or how densely pixels are packed (pixel density) or the reliability of the image data. For example, 1 bit per pixel gives only 2 shades, while 8 bits per pixel yields 256 shades, and color images use even more bits per pixel to represent color.

Increasing bits per pixel raises how many tonal values a pixel can represent. In grayscale imaging, that directly translates to how many shades of gray you can distinguish—from black to white with progressively lighter grays. So more bits per pixel means more subtle gray levels, which is why this option is correct. This doesn’t change how many pixels there are (spatial resolution) or how densely pixels are packed (pixel density) or the reliability of the image data. For example, 1 bit per pixel gives only 2 shades, while 8 bits per pixel yields 256 shades, and color images use even more bits per pixel to represent color.