Dual Nature Of Light Question 491
Question: For the production of X-rays of wavelength 0.1 Å the minimum potential difference will be [MP PMT 1994; RPMT 1995]
Options:
A) 12.4 kV
B) 24.8 kV
C) 124 kV
D) 248 kV
Show Answer
Answer:
Correct Answer: C
Solution:
$ {\lambda_{\min }}=\frac{hc}{eV}=\frac{12375}{V}{\AA}; $
$ \therefore ,V=\frac{12375}{\lambda in{\AA}}=124kV $
BETA
