Question
Question: An electron with kinetic energy E eV collides with a hydrogen atom in the ground state. The collisio...
An electron with kinetic energy E eV collides with a hydrogen atom in the ground state. The collision is observed to be elastic for (may be) –
A
0 < E <∞
B
0 < E < 10.2 eV
C
0 < E < 13.6 eV
D
0 < E < 3.4eV
Answer
0 < E < 10.2 eV
Explanation
Solution
If energy is not absorbed than collision may be is elastic