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What term describes the highest spatial frequency that can be recorded by a digital detector?

A. Nyquist frequency
B. Pixel size
C. Detector resolution
D. Sampling frequency

Answer :

The term that describes the highest spatial frequency that can be recorded by a digital detector is the Nyquist frequency, which is tied to the concept of sampling frequency and is crucial for avoiding aliasing in digital imaging.Therefore,correct option is option a. Nyquist frequency.

The term that describes the highest spatial frequency that can be recorded by a digital detector is a. Nyquist frequency. The Nyquist frequency is fundamentally associated with the concept of sampling frequency, which relates to the digital representation of an analog signal. According to Nyquist's theorem, to avoid aliasing and to accurately capture a signal, the sampling frequency must be at least twice the highest frequency present in the signal. This principle ensures that the spatial resolution - which is defined as the smallest distance between two adjacent features that can be detected in an image - is sufficient to capture the detail in the image without introducing errors.

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