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Electrostatics question

2008 · Shift 2 · Q58
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Electrostatics question

2008 · Shift 2 · Q58

JEE AdvancedPhysicsElectrostaticsMCQ+3 / −1
The nuclear charge (Ze) is non-uniformly distributed within a nucleus of radius R. The charge density ρ(r)\rho(r)ρ(r) [charge per unit volume] is dependent only on the radical distance r from the centre of the nucleus as shown in figure. The electric field is only along the radial direction. IIT-JEE 2008 Paper 2 Offline Physics - Electrostatics Question 16 English ComprehensionThe electric field at r = R is :
  1. A
    independent of a
  2. B
    directly proportional to a
  3. C
    directly proportional to a 2^22
  4. D
    inversely proportional to a
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