What term describes the angle that the outgoing electron beam makes with the CRT center line axis between the plates?

Prepare for the Fire Controlman Second Class (FC2) Test. Utilize flashcards and multiple choice questions, each with detailed explanations. Ensure success in your exam!

The term that describes the angle between the outgoing electron beam and the center line axis of the Cathode Ray Tube (CRT) formed by the deflection plates is the angle of deflection. In a CRT, electrons are accelerated and then deflected by electric or magnetic fields as they pass through the deflection plates. This deflection causes the beam to change its trajectory from its original path, making an angle with the center line axis as it exits the plates.

The angle of deflection is crucial for determining the position of the electron beam on the screen, impacting where the image is displayed. Understanding this angle is essential for functioning CRT technology, as it allows for control over the precise location where the beam strikes the phosphorescent coating on the screen, creating images.

Other terms listed, such as angle of incidence, angle of refraction, and angle of projection, pertain to different physical phenomena and therefore are not applicable in the context of how the electron beam interacts with the deflection plates in a CRT. The angle of incidence, for example, relates to angles involving surfaces, while angle of refraction deals with bending of light through different media, and angle of projection is a term generally used in kinematics to describe the path of an object in

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