Modern Physics Ques 13

  1. Some laws/processes are given in Column-I. Match these with the physical phenomena given in Column-II.

(2007, 6M)

Column I Column II
(A) Transition between
two atomic energy
levels
(p) Characteristic X-rays
(B) Electron emission
from a material
(q) Photoelectric effect
(C) Moseley’s law (r) Hydrogen spectrum
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Answer:

Correct Answer: 13.$(\mathrm{A}) \rightarrow \mathrm{p}, \mathrm{r}$ (B) $\rightarrow \mathrm{p}, \mathrm{q}, \mathrm{s}$ $(\mathrm{C}) \rightarrow \mathrm{p}$ (D) $\rightarrow \mathrm{q}$



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