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7. The distance of a star from the earth is 8.33 light minutes. What do you mean by the statement? Express the distance in metre. Class 9 ICSE Ch - Measurements and Experimentation. |
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Answer» re!The statement 'The distance of a STAR from the earth is 8.33 light minutes' means that the light from the star takes 8.33 minutes to reach earth.Given,Speed of light = 3 * 10^8 m/sDistance covered in 1 SEC = 3 * 10^8Time taken = 8.33 min = 8.33 * 60 sDistance = speed * TIME = 3 * 10^8 * 8.33 * 60 = 1.5 * 10^11 mHope It HELPS You! |
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