The photomultiplier tube used is absorption meter is coated with which of the following materials?
A. Sodium
B. Potassium
C. Phosphorous
D. Chlorine
Answer:C
The photomultiplier tube used is absorption meter is coated with which of the following materials?
A. Sodium B. Potassium C. Phosphorous D. Chlorine
Explanation: The photomultiplier tube used is absorption meter is coated with phosphorous. Only one photomultiplier tube is commonly present for both the beams.