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The orbit of a planet is an ellipse with...

The orbit of a planet is an ellipse with the sun at the centre.

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F
The orbit of a planet is an ellipse with the sun at one of the foci
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Knowledge Check

  • For motiion of planets in ellipticla orbits around the sun the central force is

    A
    the force on the plantet along the vector joining the sun and the planet
    B
    the force on the sun along the vector joining the sun and the other focus of the ellipse
    C
    the force on the planet along the line joining focus of the ellipse
    D
    none of the above

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    A
    1
    B
    2
    C
    3
    D
    4

  • Figure shows the orbit of a planet P round the sun S . AB and CD are the minor and major axed of the ellipse. If t_(1) is the time taken by the planet to travel along ACB and t_(2) the time along BDA , then

    A
    `t_(1)=t_(2)`
    B
    `t_(1)gtgt t_(2)`
    C
    `t_(1)lt t_(2)`
    D
    nothing can be concluded

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