Which term describes image magnification?

Which term describes image magnification?

• A. Contrast
• B. Noise
• C. Magnification
• D. Resolution

Answer: (C)

The main idea here is how much bigger the image looks compared to the object. The term that describes that size increase is magnification. Magnification is the ratio of the image size to the object size (and in lenses it’s related to the distances involved). It tells you how large the image appears, not how sharp or bright it is. Contrast is about differences in brightness between features, noise refers to random fluctuations in the image, and resolution is about how finely you can distinguish close details. You can have high magnification with poor resolution or with weak contrast, which is why these terms describe different aspects of an image.

The main idea here is how much bigger the image looks compared to the object. The term that describes that size increase is magnification. Magnification is the ratio of the image size to the object size (and in lenses it’s related to the distances involved). It tells you how large the image appears, not how sharp or bright it is.

Contrast is about differences in brightness between features, noise refers to random fluctuations in the image, and resolution is about how finely you can distinguish close details. You can have high magnification with poor resolution or with weak contrast, which is why these terms describe different aspects of an image.