A photon collides with a stationary H – atom in ground state inelastically. Energy of the colliding photon is 10.2 eV. Almost instantaneously, another photon collides with same H – atom inelastically with an energy of 15 eV. What will be observed by the detector?
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a
two photons of energy 10.2 eV
b
two photons of energy 1.4 eV
c
One electron having kinetic energy nearly 11.6 eV
d
One photon of energy 10.2 eV and an electron of energy 1.4 eV
answer is C.
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Detailed Solution
∵−13.6+10.2=−3.4e∨⟶1 st collision &−3.4+15=11.6eV⟶2 nd collision.