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The photomultiplier tube used is absorption meter is coated with which of the following materials?

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The photomultiplier tube used is absorption meter is coated with which of the following materials?

(a) Sodium

(b) Potassium

(c) Phosphorous

(d) Chlorine

The question was posed to me in an online quiz.

My doubt stems from X-Ray Absorption Meter in section X-Ray Spectrometers of Analytical Instrumentation

1 Answer

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Best answer
Correct choice is (c) Phosphorous

For explanation I would say: The photomultiplier tube used is absorption meter is coated with phosphorous. Only one photomultiplier tube is commonly present for both the beams.

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