Edexcel OLevel Physics Revision Note (Updated)

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Lesson

Lesson-20.1.4- use the equation relating change in wavelength, wavelength, velocity of a galaxy and the speed of light: reference wavelength/change in wavelength=velocity of a galaxy/speed of light (???????0)/??0=????/??0 =v/c

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Lesson-20.1.3- describe that if a wave source is moving relative to an observer there will be a change in the observed frequency and wavelength.Previous Lesson-20.1.5- describe the red-shift in light received from galaxies at different distances away from the Earth.Next