Question

Which of the following is the function of the discriminator?

(a) Rejects signals below a certain voltage

(b) Rejects signals above a certain voltage

(c) Rejects signal in a range alone

(d) Filters noise alone

I got this question by my school principal while I was bunking the class.

I need to ask this question from Pulse Height Analyser in portion Radiochemical Techniques of Analytical Instrumentation

Answer 1

Correct option is (a) Rejects signals below a certain voltage

To explain I would say: The discriminator can be set to reject signals below a certain voltage. This is required for excluding scattered radiation and noise.