In looking at the IFOV of a scanning thermal sensor, the ground resolution is loosely the diameter

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Question:

In looking at the IFOV of a scanning thermal sensor, the ground resolution is loosely the diameter 'D' of the beam at the earth's surface. What will increasing the IFOV angle do to the spatial footprint of the imaged portion of the ground? Group of answer choices

decrease the ground footprint size

increase the ground footprint size

the ground footprint size is independent of the IFOV of the sensor