Q;Cathode rays are stream of..................
Q:Cathode rays are produced when pressure in the discharge tube is of the order of......................
Q:The specific charge[e/m] of electron and proton are(1)................(2)............
Q;For determining(e/m) of electron by Thomson method , define the direction of electric and magnetic field to the motion of electron?
Q:If the speed of cathode rays is doubled for the value of electric field is needed so that the rays describe the same circular path is
QAn electron moving with velocity2X1O7m/s describe a circle in a mag.field0.02T,then the diameter of circle is.......
QAn electron at rest is accelerated through a pot.difference of 200volt.if the velocity of electron8.4X106m/s,the value of e/m of electron is.............
Q.If electrons enter normally in mag.field0.03Tdescribe circularpath of radius1.5cm,then the speed of electron is.....................
