The kinetic energy of a moving electron is 180 eV, its linear momentum is about: (mass of 1 electron = $9 \times 10^{-31} kg$)

$1.7 \times 10^{-14} kg~ms^{-1}$ $4.8 \times 10^{-24} kg~ms^{-1}$ $6.6 \times 10^{-24} kg~ms^{-1}$ $1.2 \times 10^{-14} kg~ms^{-1}$

$6.6 \times 10^{-24} kg~ms^{-1}$

The correct answer is Option (3) → $6.6 \times 10^{-24} kg~ms^{-1}$