$2$

Multiple Choice $12$ points

Determine the frequency and period.

$f=567THz$

$T=1\mathrm{.}76{10}^{-15}s$

$f=567GHz$

$T=4\mathrm{.}60{10}^{-7}s$

$f=1780\mathrm{.}4THz$

$T=1\mathrm{.}76{10}^{-15}s$

$f=556\mathrm{.}7THz$

$T=5\mathrm{.}59{10}^{15}s$