Dom1Bab
Dom1Bab Dom1Bab
  • 11-05-2017
  • Physics
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i need help with question two

i need help with question two class=

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egenriether
egenriether egenriether
  • 11-05-2017
I can't see numbers here, so here are all the answers:
1) the frequency is c/λ = 3e8/556e-9 = 5.39e14Hz
2) light travels at 299,792,458 m/s.  So in nanoseconds it's 0.299792458m.  This is about 1/3 of a meter which is about one foot.
3) length is L = ct = (
299,792,458 m/s)(6e-15) = 1.799e-6m or 1.799μm

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