Question

X-rays are emitted during

(a) α,n reaction

(b) K-capture

(c) n, α reaction

(d) β-emission.

Answer 1

Correct option (b) K-capture

Explanation:

ln certain nucleus, the nucleus captures an electron from the K-shell (being nearest to the nucleus). The vacancy created is filled up with the electron front the higher shells thereby emitting X-rays. As a result of K-electron capture" a proton in the nucleus is converted into a neutron (p +e^-→n).