everyday science MCQ #5635

The picture tube of a black and white TV set has only one electron gun that produces the picture on its screen. The number of electron guns a colour picture tube has is:

everyday science MCQ #5635

  1. Question 1

    Q1. The picture tube of a black and white TV set has only one electron gun that produces the picture on its screen. The number of electron guns a colour picture tube has is:

    • A) Three
    • B) Four
    • C) Six
    • D) Five

    Answer: Three

    Explanation: A colour CRT picture tube uses three separate electron guns — one each for red, green, and blue phosphor dots — to produce a full colour image.