Question
Physics Question on Atoms
In a discharge tube ionization of enclosed gas is produced due to collisions between :
A
positive ions and neutral atoms / molecules
B
negative electrons and neutral atoms / molecules
C
photons and neutral atoms / molecules
D
neutral gas atoms / molecules
Answer
negative electrons and neutral atoms / molecules
Explanation
Solution
Ionization in a Discharge Tube: In a discharge tube, ionization of enclosed gas is produced due to collisions between negative electrons and neutral atoms / molecules.
Therefore, the correct option is (B): negative electrons and neutral atoms / molecules