Dual Nature Of Light Question 513
Question: In an X-ray tube electrons bombarding the target produce X-rays of minimum wavelength 1 Å. What must be the energy of bombarding electrons [KCET 2001]
Options:
A) 13375 eV
B) 12375 eV
C) 14375 eV
D) 15375 eV
Show Answer
Answer:
Correct Answer: B
Solution:
$ E(eV)=\frac{hc}{e\lambda }=\frac{6.6\times {{10}^{-34}}\times 3\times 10^{8}}{1.6\times {{10}^{-19}}\times 1\times {{10}^{-10}}}=12375,eV $
BETA
