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JEE PHYSICS MCQ: GRAVITATION

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The largest and the shortest distance of the earth from the sun are

{r_1}\,and\,{r_2}

, its distance from the sun when it is at the perpendicular to the major axis of the orbit drawn from the sun

View answer and explanation

Correct option: C

\frac{{2{r_1}{r_2}}}{{{r_1} + {r_2}}}

The correct answer is C (

\frac{{2{r_1}{r_2}}}{{{r_1} + {r_2}}}

) because it correctly represents the semi-latus rectum of the elliptical orbit.

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The escape velocity for a body projected vertically upwards from the surface of the earth is

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. If the body is projected in a direction making an angle of

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v_e

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\theta

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