Speed of Light Measurement with a Simple Way



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Submitted Apr 15, 2018
Published Apr 30, 2018
10.24018/ejeng.2018.3.4.714

Abstract viewed = 476 times

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A method for a measurement of the speed of light is described. It is used a combination of simple, low-cost experiments. We will try to measure the wavelength and frequency of light and then we will determine the speed of light using the fundamental equation of wave. The measuring of wavelength based on the phenomenon of light interference or the phenomenon of light diffraction. The measuring of frequency based on the fact that the energy of a photon is proportional to the voltage needed to cause electrons to flow. The experiments are accessible to upper secondary school (or to college) students and particular to non-major science or engineering students. Experimental setup and equipment details are given. Also limitations of the method and experimental results are analyzed.

Keywords: Speed of Light Measurement Experiments Interference Diffraction Photon Energy Laser LED

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