Question

In the presence of same strength of electric field or magnetic field, which rays i.e. anode rays or cathode rays undergo deflection more?

Answer 1

Anode rays deflect less than cathode rays. Anode rays are ions and the smaller massive anode rays are protons. Protons are 1837 times heavier than cathode rays. Since the mass of anode rays is more than that of cathode rays, cathode rays undergo deflection more. 

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Answer 2

In the presence of same strength of electric field ,cathode rays undergo more deflection.