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Which one of the following statements is not correct?
  • a)
    The cathode rays originate from cathode and proceed towards the anode in a cathode-ray discharge tube.
  • b)
    The television picture tubes are nothing but cathode-ray tubes.
  • c)
    The cathode rays themselves are not visible.
  • d)
    The characteristics of cathode rays depend upon the nature of the gas present in the cathode-ray tube.
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
Which one of the following statements is not correct?a)The cathode ray...
  • Cathode Ray is a beam of electrons emitted from the cathode of a vacuum tube.
  • Cathode rays themselves are invisible.
  • Television picture tubes are the most common examples of the cathode-ray tubes.
  • The characteristic of cathode rays does not depend upon the nature of the gas present in the cathode-ray tube
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Most Upvoted Answer
Which one of the following statements is not correct?a)The cathode ray...
Explanation:

Origin of Cathode Rays

- Cathode rays are produced when a high voltage is applied across an evacuated glass tube containing a cathode and anode.
- The cathode rays originate from the cathode and proceed towards the anode in a cathode-ray discharge tube.

Television Picture Tubes

- The television picture tubes are cathode-ray tubes that use a beam of electrons to create an image on a fluorescent screen.

Visibility of Cathode Rays

- The cathode rays themselves are not visible as they are invisible, but their effects can be seen through fluorescence, ionization, and heating.

Characteristics of Cathode Rays

- The characteristics of cathode rays depend upon the nature of the gas present in the cathode-ray tube.
- For example, if the gas is nitrogen, the cathode rays will produce a blue glow, whereas if the gas is neon, the cathode rays will produce a red-orange glow.

Correct Statement

- Therefore, the correct statement is option 'D' which says that the characteristics of cathode rays depend upon the nature of the gas present in the cathode-ray tube.
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Which one of the following statements is not correct?a)The cathode rays originate from cathode and proceed towards the anode in a cathode-ray discharge tube.b)The television picture tubes are nothing but cathode-ray tubes.c)The cathode rays themselves are not visible.d)The characteristics of cathode rays depend upon the nature of the gas present in the cathode-ray tube.Correct answer is option 'D'. Can you explain this answer?
Question Description
Which one of the following statements is not correct?a)The cathode rays originate from cathode and proceed towards the anode in a cathode-ray discharge tube.b)The television picture tubes are nothing but cathode-ray tubes.c)The cathode rays themselves are not visible.d)The characteristics of cathode rays depend upon the nature of the gas present in the cathode-ray tube.Correct answer is option 'D'. Can you explain this answer? for Defence 2024 is part of Defence preparation. The Question and answers have been prepared according to the Defence exam syllabus. Information about Which one of the following statements is not correct?a)The cathode rays originate from cathode and proceed towards the anode in a cathode-ray discharge tube.b)The television picture tubes are nothing but cathode-ray tubes.c)The cathode rays themselves are not visible.d)The characteristics of cathode rays depend upon the nature of the gas present in the cathode-ray tube.Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for Defence 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which one of the following statements is not correct?a)The cathode rays originate from cathode and proceed towards the anode in a cathode-ray discharge tube.b)The television picture tubes are nothing but cathode-ray tubes.c)The cathode rays themselves are not visible.d)The characteristics of cathode rays depend upon the nature of the gas present in the cathode-ray tube.Correct answer is option 'D'. Can you explain this answer?.
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