Question

An atom emits violet light of wavelength `450` nm for a period of `1.0*10^-10` seconds. How many cycles does the wave train contains?

Answer 1

I got: `1.0xx10^10` cycles

Explanation:

We know that Frequency (or cycles per second) is the inverse of Period so we get:

`f=1/T=1/(1.0xx10^-10)=1xx10^10Hz` or complete cycles.