question_answer

An electron falls through a distance of 1.5 cm in a uniform electric field of\[2\times 104\text{ }N/C\]. Time required to fall through this distance (in sec):

A) \[0.2\times {{10}^{9}}s\]                     

B) \[2.9\times {{10}^{-\,9}}s\]

C) \[1.4\times {{10}^{-\,9}}s\]                  

D) \[1.96\times {{10}^{-\,9}}s\]