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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