Period of a monocromatic light?

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SUMMARY

The period of a monochromatic light with a wavelength of 660nm is calculated using the formula T = 1/f, where f represents frequency. To find frequency, the equation v = fλ is utilized, where v is the speed of light (approximately 3 x 10^8 m/s) and λ is the wavelength. The correct frequency for a wavelength of 660nm is approximately 4.545 x 10^14 Hz, leading to a period of approximately 2.2 x 10^-15 seconds. The Greek letter lambda (λ) denotes wavelength in these equations.

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  • Ability to convert units, specifically between nanometers and meters
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Homework Statement



What is the period of a monochromatic light with a wavelength of 660nm?
f=660nm

Homework Equations



T= 1/f (I think?)

The Attempt at a Solution



T = 1/660nm
The period of this monochromatic light is 0.00152 waves/nm.
Firstly, I don't know for sure that the variable T is equal to period, as this is review of last years stuff I've forgotten. Also, just to ask a quick question in this thread for my next question so I don't have to post it here, in the formula v = f& (the & is actually a weird greek symbol), what does the & stand for?
 
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T=1/f is correct, but f here stands for frequency. In your question, the wavelength is 660nm, not the frequency. First, you need to use the equation v=f\lambda to calculate the frequency, then use the formula for time period. The "weird greek symbol" is the greek letter lambda and stands for wavelength.
 
Thanks a lot for the help.
 

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