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UPSC CDS Science Physics Questions Part 1
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Question : 57
Total: 105
Which one of the following statements is not correct?
[2017 CDS-I]
The cathode rays originate from cathode and proceed towards the anode in a cathode-ray discharge tube.
The television picture tubes are nothing but cathode-ray tubes.
The cathode rays themselves are not visible.
The characteristics of cathode rays depend upon the nature of the gas present in the cathode-ray tube.
Validate
Solution:
Statement (d) is not correct. The nature of cathode rays depends neither on the gas in the tube nor on the material of the electrodes. Instead, the nature of canal rays depends on the gas in the tube
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