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The largest and the shortest distance of the earth from the sun are r1 and r2. Its distance from the sun when it is at perpendicular to the major-axis of the orbit drawn from the sun is
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r1 + r2 4 -
r1 + r2 r1 - r2 -
2 r1 r2 r1 + r2 -
r1 + r2 3
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Correct Option: C
Applying the properties of ellipse, we have
| = | + | = | ||||||
| R | r1 | r2 | r1 r2 |
| R = | ||
| r1 + r2 |
