Question

A photon of energy `12 eV` can break three molecules of `A_2` into atoms which has bond dissociation energy of `4 eV//"molecule"`.
Total energy is conserved and interaction is always one to one between photon and molecule.
A. If both assertion and reason are true and the reason is the correct explanation of the assertion.
B. If both assertion and reason are true but reason is not the correct explanation of the assertion.
C. If assertion is true but reason is false
D. If assertion is false but reason is true.

Answer 1

Correct Answer - D
(d) Since interaction between a photon and a molecule is always one to one, so a photon of energy `12 eV` can break only one molecule of `A_2` into atoms and remaining `8 eV` energy becomes kinetic energy of atoms.