The reverse effect of X-ray emission is

(A) Raman effect
(B) Compton effect
(C) Zeeman effect
(D) Photoelectric

Correct Answer : Photoelectric
Question Asked : SSC CGL Tier-I (CBE) Exam 2016
Explanation : When fast moving electrons strike on high atomic weight substance, X-ray is produced. In contrast, Photoelectric effect takes place when radiation of sufficient frequency incident on the metal surface and electrons are emitted. Hence, X - ray is the inverse phenomenon of photoelectric effect.
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