An electron of 100 eV is fired directly towards a metal plate having surface charge…
Physics · JEE Main · NTA Exams — Electrostatics
An electron of 100 eV is fired directly towards a metal plate having surface charge density of –2 × 10–6 Cm–2. What is the distance from where the electron be projected so that its just fails to strike the plate.
- 0.22 mm
- 0.33 mm
- 0.44 mm
- 0.66 mm
Answer
(C) 0.44 mm
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