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CET Karnataka Engineering CET - Karnataka Engineering Solved Paper-2002

  • question_answer
    Orbit of the earth around the sun is an ellipse with sun at one of its foci. If the semi-major axis is 150 million kilometers and the eccentricity is 1/60. The difference between the maximum and the minimum distance between the earth and the sun is:

    A)  20 million km.  

    B)  5 million km.

    C)  50 million km.  

    D)  2.5 million km.

    Correct Answer: B

    Solution :

    Maximum distance \[=a(1+e)\] Minimum distance \[=a(1-e)\] Difference\[=a(1+e)-a(1-e)=2ae\]                 \[=2\times 150\times \frac{1}{60}=5\,\,\text{million}\]


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