Magnetism Question 147
Question: If the angular momentum of an electron is $ \overrightarrow{J,} $ then the magnitude of the magnetic moment will be
[MP PET 2002]
Options:
A) $ \frac{eJ}{m} $
B) $ \frac{eJ}{2m} $
C) eJ 2m
D) $ \frac{2m}{eJ} $
Show Answer
Answer:
Correct Answer: B
Solution:
As we know for circulating electron magnetic moment $ M=\frac{1}{2}evr $ …… (i) and angular momentum $ J=mvr $ …… (ii) From equation (i) and (ii) $ M=\frac{eJ}{2m} $
BETA
