wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

An electron, a proton and an alpha particle having the same kinetic energy are moving in circular orbits of radii re,rp,rα respectively in uniform magnetic field B. The relation between re,rp,rα is

A
re<rp<rα
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
re<rα<rp
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
re>rp=rα
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
re<rp=rα
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
Open in App
Solution

The correct option is D re<rp=rα
For circular path in magnetic field,
r=2mEqBwhere E=kinetic energy
So
epαm1/183614qe+e2e

Therefore,
re<rp=rα

flag
Suggest Corrections
thumbs-up
6
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Motional EMF
PHYSICS
Watch in App
Join BYJU'S Learning Program
CrossIcon