s471967 s471967

12-05-2022
Physics

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HELP ME ASAP PLEASE!!!!!
What is the wavelength of an infrared wave with a frequency of 4.0E14 Hz.

Respuesta :

13-05-2022

Answer:

f λ = c = 3.00E8 frequency * wavelength = speed of light

λ = c / f = 3.00E8 / 4.0E14 = 7.5E-7 m

Note 1 angstrom = 1.00E-10 m and 1 milli-micron = 1.00E-9 m

So the wavelength would be 7500 angstroms

The visible spectrum is 4000 A - 7000 A or 400 - 700 milli-microns

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