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marysya [2.9K]
3 years ago
11

What is the frequency of blue light that has a wavelength of 446 nm?

Physics
2 answers:
Maslowich3 years ago
7 0
When I went through with the math, the answer I came upon was: 
<span>6.67 X 10^14 </span>

<span>Here is how I did it: First of all we need to know the equation. </span>

<span>c=nu X lamda </span>
<span>(speed of light) = (frequency)(wavelength) </span>
<span>(3.0 X 10^8 m/s) = (frequency)(450nm) </span>

<span>We want the answer in meters so we need to convert 450nm to meters. </span>
<span>450nm= 4.5 X 10^ -7 m </span>
<span>(3.0 X 10^8 m/s) = (frequency)(4.5 X 10^ -7 m) </span>

<span>Divide the speed of light by the wavelength. </span>
<span>(3.0 X 10^8m/s) / (4.5 X 10^ -7m) =6.67 X 10^ 14 per second or s- </span>

<span>Answer: 6.67 X 10^14 s- hope this helps</span>
BartSMP [9]3 years ago
3 0
From Electromagnetic Waves,
Velocity  C = f *λ

Where C = Velocity in m/s. = 3 * 10^8 m/s.
            f = Frequency in Hertz     ( /s)
           λ = Wavelength in metres.

Wavelength of blue light = 446 nm = 446 nano metres = 446 * 10^-9 m.

f =  C / λ  = ( 3 *10^8) / (446 * 10^-9)    use your calculator.
               =  6.7265 * 10 ^ 14  Hertz.
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