An electron of mass ( m ), charge e falls through a distance ( h ) meter in a uniform electric field ( E ). Then time of fall

Step-by-step solution

Given, mass of electron ( =m ); charge ( =e ); height ( =h ) Using ( S+u t+ 1 2 a t² ), we have [ array l h=0+ 1 2 e E m t² h= 1 2 e E m t² array ] On rearranging, we get [ array l t²= 2 m h e E t= 2 m h e E array ]