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In J.J. Thomson e/m experiment, a beam o...

In J.J. Thomson e/m experiment, a beam of electron is replaced by that of muons (particle with same charge as that of electrons but mass 208 times that of electrons). No deflection condition is achieved only if

A

B is increased by 208 times

B

B is decreased by 208 times

C

B is increased by 14.4 times

D

B is decreased by 14.4 times

Text Solution

Verified by Experts

The correct Answer is:
C
In the condition of no deflection `e/m = E^2/(2vB^2)`
If m is increased by 208 times then B should be increased `sqrt208 = 14.4` times
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