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Assertion : The light year and wavelength consist of dimensions of length. Reason : Both light y... - YouTube
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SOLVED: d. The speed of light at about 1.86x105 milsec= Define a light year: 5 b. Length of a light year in miles (scientific notation) Length of a light year in km (
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What is a light-year and how is it used??
What Is a Light-Year? | NASA Space Place – NASA Science for Kids
