Bainbridge's mass spectrometer separates ion having the same velocity. The ions, after enteering through slits, S_(1) and S_(2), pass through a velocity selector composed of an electric field pproduced by the charged plates P and P' abd a magnetic field vecB perpendicular to electric field and the ion path.Thew ions that then passs undeviated through the crossed vecE1 and vecB fields enter into a region where a secondmagnetic field vecB 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 (q)/(m) of ion is

Bainbridge's mass spectrometer separates ion having the same velocity.

1.	Bainbridge's mass spectrometer separates ion having the same velocity. The ions, after enteering through slits, S_(1) and S_(2), pass through a velocity selector composed of an electric field pproduced by the charged plates P and P' abd a magnetic field vecB perpendicular to electric field and the ion path.Thew ions that then passs undeviated through the crossed vecE1 and vecB fields enter into a region where a secondmagnetic field vecB 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 (q)/(m) of ion is
Answer» `(E)/(RBB')` `(2E)/(rBB')` `(3E)/(2rBB')` `(2E)/(3rBB')` ANSWER :A

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