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(a)Though moon is a natural satellite, but it can be used for communication purposes.give reasons. (b) light travels with a speed of 3×10 power 8 m/s in vaccine. Sunlight takes 8.3 minutes to reach the earth. Calculate the distance between the earth and the sun |
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Answer» (a)Though moon is a natural satellite, but it can be used for communication purposes.give reasons. (b) light travels with a speed of 3×10 power 8 m/s in vaccine. Sunlight takes 8.3 minutes to reach the earth. Calculate the distance between the earth and the sun |
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