Question

Sunlight is composed of wavelengths of light that make up part of the electromagnetic spectrum. Towson University Exam Question. The frequency of a wave is directly proportional to the speed at which the wave is traveling. Do NOT Copy! Calculate the frequency (in Hz) of light at the following wavelength:

Answer 1

Answer:

$f= 5.11 * 10^{10}Hz$

Explanation:

Given

$\lambda = 0.587cm$

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Required

Calculate the frequency

Frequency is calculated using:

$f = \frac{c}{\lambda}$

Where

$c \to$ speed of light

$c =299792458 ms^{-1}$

$\lambda = 0.587cm$

Convert wave length to meters

$\lambda = 0.587 * 0.01m$

$\lambda = 0.00587m$

So, we have:

$f = \frac{c}{\lambda}$

$f=\frac{299792458 ms^{-1}}{0.00587m}$

$f=\frac{299792458}{0.00587}Hz$

$f= 5.11 * 10^{10}Hz$