Value of one light year
A light-year is a unit of distance rather than time (as the name might imply). A light-year is the distance travelled by a beam of light in a single Earth year, which is around 5.88 trillion miles (9.46 trillion kilometres) per year over interstellar space. Given the enormous numbers being addressed, calculating distances in miles […]
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Class 11, IIT JEE, Physical World and Measurement, Physics, Units and dimensions