A Convex Lens is the type of lens used in magnifying glasses.
ν=c/λ
c=300.000.000m/s=300.000.000.000.000.000nm/s
λ=532nm
v=300.000.000.000.000.000/532=5.6*10^14Hz(third option)
Sounds like juan has a hard life. LOL CYANIDE CAPSULES?
I think it’s Ribosomes but I could be wrong .. if so sorry