Dual Nature Of Light Question 142
Question: According to de-Broglie, the de-Broglie wavelength for electron in an orbit of hydrogen atom is 10?9 m. The principle quantum number for this electron is [RPMT 2003]
Options:
A) 1
B) 2
C) 3
D) 4
Show Answer
Answer:
Correct Answer: C
Solution:
$ 2\pi ,r,n=\lambda \Rightarrow n=\frac{\lambda }{2\pi ,r}=\frac{{{10}^{-9}}}{2\times 3.14\times 5.13\times {{10}^{-11}}}=3 $
BETA
