A planet is revolving around the sun as shown in an elliptical path

The correct option is

The time taken in travelling DAB is less than that for BCD

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The time taken in travelling DAB is greater than that for BCD

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The time taken in travelling CDA is less than that for ABC

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The time taken in travelling CDA is greater than that for ABC

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Solution

The correct option is A The time taken in travelling DAB is less than that for BCD
According to Kepler's second law which states 'A radius vector joining any planet to the Sun sweeps out equal areas in equal lengths of time', we can say that velocity of the earth near point A is higher than at point C. So the time taken in travelling DAB is less than that for BCD.

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