Question

With what speed do the electrons strike the screen? Hint: The kinetic energy of an electron which has been accelerated through a potential difference of 1 V has a kinetic energy equal to 1 eV.

Answer 1

Answer: 3.5 X 10^11 m/s

Step-by-step explanation:

1 eV is the amount of energy associated with moving one electron through a potential difference of 1 volt.

1 eV = 1.6 x 10-19 J

Mass of electron=9.11 × 10-31

K.E =MV^2/2

V=√(2K.E/M)

V=3.5 X 10^11