When a beam of charged particles moves through a magnetic held, what is the evidence that particles in the beam have momenta greater than the value ?mv??

Solution 29RQ Step 1 of 2 : As the speed of the charged particles will be higher, we have to solve the problem under relativistics limit. Therefore, the momentum of an object under relativistic case is given by, When the charged particle is not accelerated or not moving fast.The momentum is the product of mass and velocity of object, That is, P = m v0