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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > Bainbridge’s mass spectrometer separates ion having the same velocity. The ions, after enteering through slits, S1 and S2, pass through a velocity selector composed of an electric field produced by the charged plates P and P’ and a magnetic field B perpendicular to electric field and the ion path.Thew ions that then pass undeviated through the crossed E 1 and B fields enter into a region where a second magnetic field B exists, where they are made to follow circular path. A photographic plate ( or a modern detector) registors their arrival. If r is the radius of the circular orbit , then specific charge qm of ion is

Bainbridge’s mass spectrometer separates ion having the same velocity. The ions, after enteering through slits, S1 and S2, pass through a velocity selector composed of an electric field produced by the charged plates P and P’ and a magnetic field B perpendicular to electric field and the ion path.Thew ions that then pass undeviated through the crossed E 1 and B fields enter into a region where a second magnetic field B exists, where they are made to follow circular path. A photographic plate ( or a modern detector) registors their arrival. If r is the radius of the circular orbit , then specific charge qm of ion is

A particle having a charge of 10 μC and mass 1 μg moves in a horizontal circle of radius 10 cm under the influence of a magnetic field of 0.1 T. When the particle is at a point P a uniform electric field is switched on so that the particle starts moving along the tangent with uniform velocity. The electric field is after enteering through slits an electron of mass m and low (negligible )speed enters the region between two polates of potential difference V and plate seperation d Bainbridge's mass spectrometer separates ion having the same velocity. The ions charge -e In the below fig S1​ and S2​