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A proton obliquely enters a uniform magn...

A proton obliquely enters a uniform magnetic field of 0.5 T. It the component of its velocity along and perpendicular to the direction of the magnetic field are `1.5xx10^(5)m.s^(-1)` and `2xx10^(5)m.s^(-1)`, respectively, calculate the radius of the helical path followed by the proton ant its pitch. `[m=1.67xx10^(-27)kg,e=1.6xx10^(-19)C]`

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