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Standard XII
Physics
NCERT
Question

A charged plate has charge density of 1×10−5C/m2. Find the inital distance of an electron which is moving towards plate, can not strike the plate, if it is having energyof 100eV.
  1. 0.88mm
  2. 1.51mm
  3. 1.77cm
  4. 3.51cm.

A
0.88mm
B
1.51mm
C
1.77cm
D
3.51cm.
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