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In an orbital motion, the angular momentum vector is ___________

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In an orbital motion, the angular momentum vector is ___________

(a) Along the radius vector

(b) Parallel to the linear momentum

(c) In the orbital plane

(d) Perpendicular to the orbital plane

I have been asked this question in a job interview.

The origin of the question is Significance of Moment of Inertia topic in division Laws of Motion of Engineering Physics I

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Right option is (d) Perpendicular to the orbital plane

For explanation I would say: In an orbital motion, the direction of the angular momentum vector is perpendicular to the orbital plane.

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