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T1 CH1 Measurements — Science STD 7 — Question

Tamilnadu BoardEnglish MediumSTD 7ScienceT1 CH1 Measurements1 Mark
Question
Define - Astronomical unit.
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Answer

One astronomical unit is defined as the average distance between the earth and the sun. $1 AU =1.496510^6 km=$ $1.496 \times 10^{11} m$

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