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A positive charge particle having change...

A positive charge particle having change q and mass m has velocity `vecv = v((hati+hatk)/sqrt2)` in the magnetic field B at the origin . Its speed as the function of y is :

A

`sqrt(v^2+(qE)/(2m)y)`

B

`sqrt((B/E)^2+v^2+(qE)/(2m)y) `

C

`sqrt(v^2+(2qE)/my)`

D

None of the above

Text Solution

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The correct Answer is:
C
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