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A new unit of length is chosen such that the speed of light in vacuum is unity. what is the distance between the sun and the earth in terms of the new unit if light takes 8 min and 20s to cover this distance. |
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Answer» -The SPEED of light in vacuum is unity.To FiNd :-The distance between the Sun and the EARTH.SoLuTiOn :-We know,Distance = speed × timeSpeed in unity = 1 unit /secTime = 8 min and 20 SECS = (8 × 60) + 20 sec = 500 secsSubstituting the values :-Distance between Sun and Earth = 1 × 500 = 500 units |
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