15 16 Paragraph for Questions no 15 16 Figure shows a

Last updated: 6/7/2023

15 16 Paragraph for Questions no 15 16 Figure shows a schematic view of an electrostatic analyzer It can sort out charged particles by speed and charge to mass ratio Spacecraft uses such analyzers to characterize charged particles in interplanetary space Two curved metal plates establish an electric field given by E E b r where E and b are positive constants The field points towards the centre of curvature and r is distance from centre There is no influence of gravity Proton charge e mass m enters along y axis and exits along x axis while moving along a circular path Electric field Analyzer Mark the CORRECT option s A Speed with which proton is to be projected is given by v B If v X b C Electric force on proton is given by E m Proton beam E B centripetal acceleration of electron is a is given by a m D Electric force on proton is given by 2eE 2eEb Mark the CORRECT option s A Work done by electric field on proton is zero 2eE b m Exit eE b m proton may strike outer surface of analyzer C If v proton may strike inner surface of analyzer D If an electron is released with zero initial velocity from inner surface of analyzer it will strike outer