Answer:
5.13*10^51 Hz
Step-by-step explanation:
We use the Modern Physics equation:
E=hf
E= energy (in this case, it's 3.4x10^18)
h= Planck's constant (6.63*10^-34)
f= Frequency
Plug the values in:
3.4x10^18= 6.63*10^-34 (f)
Divide both sides by 6.63*10^-34 to get a frequency of 5.13*10^51 Hz