A) \[1/80\]
B) \[1/1800\]
C) \[1/800\]
D) \[1/1000\]
Correct Answer: B
Solution :
Mass of electron \[({{m}_{e}})=9.1\times {{10}^{-31}}kg\]. Highest nucleus is of hydrogen. Mass of H-nucleus \[{{m}_{H}}=1.67\times {{10}^{-27}}kg\] \[\frac{{{m}_{e}}}{{{m}_{H}}}=\frac{9.1\times {{10}^{-31}}}{1.67\times {{10}^{-27}}}=\frac{1}{1800}\] (approx)
You need to login to perform this action.
You will be redirected in
3 sec
