Which of the following IR radiation is used in measuring relative humi – McqOptions

MCQOPTIONS

1.	Which of the following IR radiation is used in measuring relative humidity?
A.	Wavelength of less than 1um
B.	Wavelength less than 3um
C.	Wavelength greater than 10um
D.	Wavelength of any value
Answer» C. Wavelength greater than 10um

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