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A bubble chamber is used to detect high speed particles in cosmic rays. The bubb

ID: 2038202 • Letter: A

Question

A bubble chamber is used to detect high speed particles in cosmic rays. The bubble chamber is placed in a uniform magnetic field of strength 5.00 T. A particle with charge q=1.602 x 10^-19 C was observed entering the bubble chamber with speed 2.70 x 10^8 m/s. in this bubble chamber it traveled in a circular path with radius 1.29 m. Determine the mass of the speeding particle. A bubble chamber is used to detect high speed particles in cosmic rays. The bubble chamber is placed in a uniform magnetic field of strength 5.00 T. A particle with charge q=1.602 x 10^-19 C was observed entering the bubble chamber with speed 2.70 x 10^8 m/s. in this bubble chamber it traveled in a circular path with radius 1.29 m. Determine the mass of the speeding particle. A bubble chamber is used to detect high speed particles in cosmic rays. The bubble chamber is placed in a uniform magnetic field of strength 5.00 T. A particle with charge q=1.602 x 10^-19 C was observed entering the bubble chamber with speed 2.70 x 10^8 m/s. in this bubble chamber it traveled in a circular path with radius 1.29 m. Determine the mass of the speeding particle.

Explanation / Answer

Radius of gyration of a charged particle in magnetic field is given by:

R = mv/qB

Hence, mass of charged particle is given by:

m = qRB/v = (1.6 x 19-19 x 1.29 x 5.0)/(2.70 x 108)

m = 3.822 x 19-27 kg