Physics-(general)
NEET Physics (general) MCQ Question
Type: MCQ-diagram based-Medium-Class 12
Consider a diagram of a discharge tube with a gas at low pressure. Which of the following processes is responsible for the discharge occurring between electrodes when an electric field is applied?
A
Conduction of electricity through the gas.
B
Thermionic emission from the electrodes.
C
Photoelectric effect on the gas molecules.
D
Fluorescent glow due to X-rays.
Correct Answer
Option A
Detailed Explanation
The discharge occurs due to the conduction of electricity through the gas at low pressure, leading to a fluorescent glow as mentioned in Chunk 2.
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