Photoelectric pyrometers are suitable in the temperature range of __________ °C.
A. 400-1600
B. 800-1600
C. 800-2500
D. 400-1000
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Answer: B
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Photoelectric pyrometers are suitable in the temperature range of __________ °C.
A. 400-1600
B. 800-1600
C. 800-2500
D. 400-1000
Answer: B
Share your understanding of this question with the correct explanation.