Dual Nature Of Light Question 522
Question: The potential difference between the cathode and the target in a Collidge tube is 100 kV. The minimum wavelength of the X-rays emitted by the tube is [Pb. PMT 2004]
Options:
A) 0.66 Å
B) 9.38 Å
C) 0.246 Å
D) 0.123 Å
Show Answer
Answer:
Correct Answer: D
Solution:
$ {\lambda_{\min }}=\frac{hc}{eV}=\frac{6.6\times {{10}^{-34}}\times 3\times 10^{8}}{1.6\times {{10}^{-19}}\times 100\times 10^{3}} $ $ =0.123{\AA} $
BETA
