Dual Nature Of Light Question 476
Question: The wavelength $ \lambda $ of the $ {K_{\alpha }} $ line of characteristic X-ray spectra varies with atomic number approximatel [MP PMT 1987]
Options:
A) $ \lambda \propto Z $
B) $ \lambda \propto \sqrt{Z} $
C) $ \lambda \propto \frac{1}{Z^{2}} $
D) $ \lambda \propto \frac{1}{\sqrt{Z}} $
Show Answer
Answer:
Correct Answer: C
Solution:
According to Mosley’s law $ \nu =a,{{(Z-b)}^{2}} $ and $ \nu \propto \frac{1}{\lambda } $