Question

31. The linear momentum of an electron,
initially at rest, accelerated through a
potential difference of 100 Vis
1) 9.1 x 10-24 -2) 6.5 x 10-24
3) 5.4 x 10-24
4) 1.6 x 10-24​

Answer 1

. The de Broglie wavelength λ=1.23 x 10−9m . If a charge of 1 Coulomb is moved through a potential difference of 1 Volt then 1 Joule of work is done. This is how the Volt is defined.