Dual Nature Of Light Question 63
Question: In Thomson experiment of finding $ e/m $ for electrons, beam of electron is replaced by that of muons (particle with same charge as of electrons but mass 208 times that of electrons). No deflection condition in this case satisfied if [Orissa (Engg.) 2002]
Options:
A) B is increased 208 times
B) E is increased 208 times
C) B is increased 14.4 times
D) None of these
Show Answer
Answer:
Correct Answer: C
Solution:
In the condition of no deflection $ \frac{e}{m}=\frac{E^{2}}{2VB^{2}}\Rightarrow $ If m is increased by 208times then B should be increased $ \sqrt{208}=14.4\ $ times
BETA
