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Sagot :
Explanation:
Frequency and wavelength are inversely proportional to each other. The equation that relates them is:
f = c/λ
Where f is the frequency, λ is the wavelength and c is the speed of light.
f = ? λ = 843 nm c = 3.00 * 10^8 m/s
Before we replace these values into the formula we have to convert the wavelength from nm to m.
1 m = 1 * 10^9 nm
λ = 843 nm = 843 nm * 1 m/(1 * 10^9 nm)
λ = 8.43 *10^(-7) m
Finally we can replace the values into the equation and get the answer to our problem.
f = c/λ
f = (3.00 * 10^8 m/s)/( 8.43 *10^(-7) m)
f = 3.56 * 10^14 1/s
f = 3.56 * 10^14 Hz
Answer: the frequency of the light is 3.56 * 10^14 Hz
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