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Grade: 6
        
A charge particle ‘q’ is shot towards another charged particle ‘Q’ which is fixed, with a speed ‘v’ . It approaches ‘q’ upto a closest distance r and then returns. If q were given a speed of ‘2v’ the closest distances of approach would be
3 years ago

Answers : (2)

Navjyot Kalra
askIITians Faculty
654 Points
							(d) ½ mv2 = kQq/r ? ½ m (2v)2 = kqQ/r’ ? r’ =
r/4
						
3 years ago
shubham
11 Points
							
as mentioned by navjyot 
all the kinetic energy is being completely converted into potential energy of system of two(both) particles
 
2 months ago
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