Question

an electron is moving with a velocity of 2.5*10.6 m/s. calculate kinetic energy of the electron.

Answer 1

mass of an electron =9.109×10−3

velovity = 2.5*10^6 m/s

Ek = 1/2mv^2

1/2 9.109×10−3 *(2.5*10^6)^2

=calculate kar lo yaar