Dual Nature Of Light Question 117
Question: In X-ray tube when the accelerating voltage V is halved, the difference between the wavelength of Ka line and minimum wavelength of continuous X-ray spectrum
Options:
A) Remains constant
B) Becomes more than two times
C) Becomes half
D) Becomes less than two times
Show Answer
Answer:
Correct Answer: D
Solution:
$ \Delta \lambda ={\lambda_{{K_{\alpha }}}}-{\lambda_{\min }} $ When V is halved $ {\lambda_{\min }} $ becomes two times but $ {\lambda_{{K_{\alpha }}}} $ remains the same. \ $ \Delta \lambda ‘={\lambda_{{K_{\alpha }}}}-2{\lambda_{\min }} $ $ =2(\Delta \lambda )-{\lambda_{K_{a}}} $ \ $ \Delta \lambda ,’<2,(\Delta \lambda ) $
BETA
