Question

Which of the following is the function of the chopper in Atomic Absorption Spectroscopy?

(a) To split the beam into two

(b) To break the steady light into a pulsating light

(c) To filter unwanted components

(d) To reduce the sample into atomic state

I have been asked this question by my school principal while I was bunking the class.

This question is from Atomic Absorption Spectroscopy in portion Colorimetry and Spectrometry of Analytical Instrumentation

Answer 1

The correct option is (b) To break the steady light into a pulsating light

To elaborate: The function of the chopper in Atomic Absorption Spectroscopy is to break the steady light into pulsating light. It is a rotating wheel placed between the flame and the source.