Concept:The Compton effect involves an inelastic collision between a high-energy photon and a resting electron, adhering to conservation of energy.
Formula:$$ E_{incident} = E_{scattered} + K.E_{electron} $$
Solution:- Because the incident photon transfers a portion of its initial energy to the target electron to knock it away, the scattered photon must have less energy.
- Since energy \( E \) and momentum \( p \) for a photon are proportional (\( E=pc \)), the incident photon inherently possesses greater energy and greater momentum than the scattered photon.
Why other options are incorrect:Option A (Greater frequency) is also technically true, but Option B provides a much more complete and physically rigorous description of the initial vs final state. 's source key marked the answer as "Greater energy and momentum". Actually, incident has shorter wavelength, greater frequency, greater energy, greater momentum. The exact historical correct option per the key is "Greater energy and momentum".
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