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S3 PHYSICS Optics
Earth from Proxima Centauri? Express your answer in kilometer (km). Distance between the Earth from Proxima Centauri = 4.3 light years = 4.3 3 x 108 x (365.25 x 24 x 60 x 60) m = 4.07 x 1016 m = 4.07 x 1013 km Remember: 1 km = 1000 m Proxima Centauri is the nearest star from our solar system !
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GEOGRAPHY PAPER 1 (Sample Paper)
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