Answer:
Full Width at Half Maximum (FWHM) is a measure of the width of a curve at a certain height, typically at half of its maximum response or amplitude. Mathematically, it is the distance between the two points where the curve crosses half of the maximum value.
Base Width refers to the width of the base of a peak or a curve, measured at its baseline or lowest point. Mathematically, it is the distance between the two points where the curve intersects the baseline, usually at a certain percentage of its maximum response.
Explanation: