Question: Visible Light is a wave, but not a mechanical wave. The quantities that oscillate are electric and magnetic fields. Light visible to humans has wavelengths

Visible Light is a wave, but not a mechanical wave. The quantities that oscillate are electric and magnetic fields. Light visible to humans has wavelengths between 400 urn (violet) and 700 urn (red), and all light travels through vacuum at speed c = 3.00 X 108 m/s.
(a) What are the limits of the frequency and period of visible light?
(b) Could you time a single light vibration with a stopwatch?

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