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A proton travels few distance in an elec...

A proton travels few distance in an electric field, it then enters a crossed magnetic field of 1 T. If radius of its path is 0.2 m, find the velocity of proton :-

A

`0.2xx10^(8)m//s`

B

`0.2xx10^(7)m//s`

C

`0.2xx10^(6)m//s`

D

`2xx10^(8)m//s`

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The correct Answer is:
A
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MOTION-MAGNETISM -1-Exercise - 3 SECTION -A
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