A bubble chamber is an apparatus that is used to show the paths of particles. A

Question

A bubble chamber is an apparatus that is used to show the paths of particles. A high-energy particle enters the chamber and, at a point P, there is a reaction that gives to two charged particles. The tracks of the particles are shown below. There is a uniform field of force acting normally to the plane of the paper State, and explain, whether the field of force is electric or magnetic, The path of each of two particles produced in the reaction is a spiral. One particle is spiralling clockwise, the other anti-clockwise. Suggest why they spiral in opposite directions. Outline why each path is a spiral, rather than a circle,

Explanation / Answer

A particle that is initially moving at some angle between parallel and perpendicular to the field would follow a motion which is a combination of circular motion and straight-line motion...it would follow a spiral path. The axis of the spiral would be parallel to the field.

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