Final answer:
Increased image noise results in decreased contrast resolution, reducing image quality by making fine details harder to distinguish. Greater noise obscures detail and increases graininess. Resolution is affected by factors like wavelength and numerical aperture, not image noise.
Step-by-step explanation:
The effect of increased image noise is B. Decreased contrast resolution. Noise in an image refers to random variations of brightness or color information that degrades the quality of the image. It makes it harder to distinguish slight differences in shade or color, essentially reducing the ability of the observer to perceive small differences, hence, decreasing the contrast resolution. A high noise level can obscure fine detail, make an image look grainy, and significantly lower the overall image quality. In microscopy and imaging, factors such as wavelength and numerical aperture play crucial roles in affecting resolution, where shorter wavelengths and higher numerical apertures improve the resolution of an image.
Magnification is the process of enlarging the appearance of an object, while resolution is the ability to distinguish two separate points as separate. The two factors that affect resolution are wavelength and numerical aperture. Shorter wavelengths and higher numerical apertures enable higher resolution images.