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JEE Main 8 Apr 2019 Paper 2 Solved Paper

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Question : 15

Total: 90

A positive point charge is released from rest at a distance ro from a positive line charge with uniform density. The speed ( v) of the point charge, as a function of instantaneous distance r from line charge, is proportional to :

v∝√ln(
r
r0
)
v∝(
r
r0
)
v∝ln(
r
r0
)
v∝e+r∕r0

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