There is a uniform spherically surface charge density at a distance 
from the origin he charge distribution is initially at rest and starts expanding because of mutual repulsion. The figure that represents best the speed 
of the distribution as a function of its instantaneous radius 
is:
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
JEE Main 2019
Total energy of charge distribution is constant at any instant t.
i.e., 
Also the slope of 
curve will go on decreasing.
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