Nier-Johnson geometry involves a deflection of which of the following radians in a radial electrostatic field analyser?
A. Π
B. Π/2
C. Π/3
D. Π/4
Answer:B
Nier-Johnson geometry involves a deflection of which of the following radians in a radial electrostatic field analyser?
A. Π B. Π/2 C. Π/3 D. Π/4
Explanation: Nier-Johnson geometry involves a deflection of Π/2 radians in a radial electrostatic field analyser. A magnetic deflection of Π/3 radians follows the analyser.