Dual Nature Of Light Question 465

Question: If the cathode?anode potential difference in an X-ray tube be 105 V, then the maximum energy of X-ray photon can be

Options:

A) 105 J

B) 105 MeV

C) 10?1 MeV

D) 105 KeV

Show Answer

Answer:

Correct Answer: C

Solution:

Since $ {\lambda_{\min }}=\frac{12375}{V}{\AA} $ $ =\frac{12375}{10^{5}},{\AA}=0.123,{\AA} $ $ {E_{\max }}=\frac{hc}{{\lambda_{\min }}}; $ On putting the values. $ {E_{\max }}\cong {{10}^{-1}}MeV. $