Electrostatics Question 708
Question: Electric lines on the right have twice the separation of those on the left. If a charge particle takes time t to move a distance x in left region, then it will take time to travel the same distance in the right side region is:
Options:
A) $ \frac{t}{2} $
B) $ t $
C) $ \sqrt{2}t $
D) $ 2t $
Show Answer
Answer:
Correct Answer: C
Solution:
[c] $ x=\frac{1}{2}at^{2}=\frac{1}{2}( \frac{Eq}{m} )t^{2}\text{ and }x=\frac{1}{2}( \frac{Eq}{2m} )t{{’}^{2}} $
$ \therefore t’=\sqrt{2}t. $
