Question

what are L.F.P and U.F.P kepvin scale​

Answer 1

Answer:

nothing to do with that

Answer 2

(1) To construct a scale of temperature, two fixed points are taken. First fixed point is the freezing point (ice point) of water, it is called lower fixed point (LFP). The second fixed point is the boiling point (steam point) of water, it is called upper fixed point (UFP).