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In Fig. the line that join a planet to ...

In Fig. the line that join a planet to the sun sweep out areas `A_(1),A_(2),A_(3)` in time intervals 6 weeks, 3 weeks and 2 weeks respectively. How are `A_(1),A_(2),A_(3)` ?realted

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According to Kepler's 2nd law, areal velocity of planet is constant.
`:. A_(1)/(6)=A_(2)/(3)=A_(3)/(2) or A_(1)=2A_(2)=3A_(3)`
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