MHT CET Physics question

A thermocouple cannot be preferred to use as thermometer above this temperature

(A)Cold junction temperature
(B)Hot junction temperature
(C)Inversion temperature
(D)Neutral temperatureCorrect

Answer: (D)

Solution

Up to the neutral temperature the emf rises steadily with the hot-junction temperature, but beyond it the emf falls, so one emf value corresponds to two

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Question ID VK-045092