Use the Following Figure for the Next Problem $\varPsi$ = a Sin (Kx -

Use the following figure for the next problem.
-An electron that is not localized in space is described by the wave function $\varPsi$ = A sin (kx - $\omega$ t) .The kinetic energy of the electron is 10 keV.The value of $\omega$ is approximately

A) 1.5 $\times$ 10¹⁹ s^-1
B) 3.0 $\times$ 10¹⁹ s^-1
C) 4.5 $\times$ 10¹⁹ s^-1
D) 1.5 $\times$ 10²¹ s^-1
E) 3.0 $\times$ 10²¹ s^-1