WHY IS THE DISTANCE BETWEEN STARTS EXPRESSED IN LIGHT YEARS? WHAT DO YOU UNDERSTAND BY THE STATEMNETS THAT A STAR IS EIGHT LIGHT YEARS AWAY FROM THE EARTH??
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7
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The large distances are expressed in light years. A star is located eight light years away from the Earth. This means that the distance between the star and the Earth is equivalent to the distance travelled by light in eight years. So the distance between the earth and star = 8x (9.46 x 1012) =7.6 x 1013 km.
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Answered by
3
Answer:
Hey¡
Light is used to measure large distances.
Si unit is meter
oNe Light year = 9.46×10¹⁵
It means star is at 8 × 9.46 × 10¹⁵ = 75.68× 10¹⁵ m away from the start.
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