Dual Nature of Radiation and Matter - Result Question 15
16. In a discharge tube ionization of enclosed gas is produced due to collisions between
[2006]
(a) negative electrons and neutral atoms / molecules
(b) photons and neutral atoms /molecules
(c) neutral gas atoms $/ molecules$
(d) positive ions and neutral atoms/molecules
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Answer:
Correct Answer: 16. (a)
Solution:
- (a) When electrons emitted from cathode collide with gas molecules or atoms, they knock out outer electrons and produce positively charged ions. They become part of positive rays.
