Operating range of a temperature measuring instrument is 800 to 1600...

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Operating range of a temperature measuring instrument is 800 to 1600°C. It could be a/an __________ pyrometer.

A. Radiation

B. Optical

C. Photoelectric

D. None of these

Answer: Option C

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Comments ( 1 )

DANCING #B.C.A.# :

5 years ago

it could be an optical pyrometer.. please correct it..
option-B

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