SATHEE: Gravitation - Result Question 8

Gravitation - Result Question 8

8. 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 perpendicular to the major-axis of the orbit drawn from the sun is

[1988]

(a) $\frac{r_{1} + r_{2}}{4}$

(b) $\frac{r_{1} + r_{2}}{r_{1} - r_{2}}$

(d) $\frac{r_{1} + r_{2}}{3}$

Topic 2: Newton’s Universal Law of Gravitation

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Answer:

Correct Answer: 8. (c)

Solution:

$\frac{2}{R} = \frac{1}{r_{1}} + \frac{1}{r_{2}} = \frac{r_{1} + r_{2}}{r_{1} r_{2}}$

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$R = \frac{2 r_{1} r_{2}}{r_{1} + r_{2}}$

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Gravitation - Result Question 8

8. 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

Topic 2: Newton’s Universal Law of Gravitation

Answer:

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8. 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 perpendicular to the major-axis of the orbit drawn from the sun is