JEE Advanced Model Paper 19 with solutions for online practice

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Paragraph for Question Nos. 53 to 55

The nuclear charge (Ze) is non-uniformly distributed within a nucleusof radius R. The charge density ρ (r) [charge per unit volume] isdependent only on the radial distance r from the centre of the nucleusas shown in figure. The electric field is only along the radial direction
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Question : 55 of 60
 
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The electric field within the nucleus is generally observed to be linearly dependent on r. This implies:
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