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Model Paper 8 — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistryModel Paper 81 Mark
MCQ
Cathode rays are deflected by:
  • ✓
    electric and magnetic fields
  • B
    magnetic field only
  • C
    thin metal foils only
  • D
    electric field only
✓

Answer

Correct option: A.
electric and magnetic fields
(a) electric and magnetic fields
Explanation: When an electric field is applied to a stream of cathode rays, they get deflected towards the positive plate. On the application of a magnetic field perpendicular to the path of the cathode rays, they get deflected in the direction expected of negative particles.

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