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[" 14.An electron having charge e and ma...

[" 14.An electron having charge e and mass "m" starts "],[" from lower plate of two metallic plates separated "],[" by a distance d.If the potential difference "],[" between plates is "V" ,the time taken by electron to "],[" reach the upper plate is given by t = "],[[" 4) "sqrt((2md^(2))/(eV))," 2) "sqrt((md^(2))/(eV))],[" 3) "sqrt((1)/(2)(md^(2))/(eV))," 4) "(2md^(2))/(eV)]]

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