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How Long Dose I Take Light To Travel 1 Au?

January 24, 2024 by Amira Khan

How Long Dose I Take Light To Travel 1 Au? Light travels at a speed of 299,792 kilometers per second; 186,287 miles per second. It takes 499.0 seconds for light to travel from the Sun to the Earth, a distance called 1 Astronomical Unit. How many AU per second does light travel? Light-second 1 light-second

How Much Faster Does Light Travel Through Water?

January 24, 2024 by David Evans

How Much Faster Does Light Travel Through Water? Light travels at approximately 300,000 kilometers per second in a vacuum, which has a refractive index of 1.0, but it slows down to 225,000 kilometers per second in water (refractive index of 1.3; see Figure 2) and 200,000 kilometers per second in glass (refractive index of 1.5).