Double-pass cylindrical mirror energy analyser has how many mirrors?
A. One
B. Two
C. Three
D. Four
I got this question in exam.
I need to ask this question from Instrumentation for Electron Spectroscopy in chapter Electron and Ion Spectrometers of Analytical Instrumentation
Right choice is B. Two
Explanation: Double-pass cylindrical mirror energy analyser has two mirrors. It is commonly used in electron spectroscopy.