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Kepler's Law

In case of a ...

Question

In case of a planet revolving around the sun, the angle between the gravitational force and the radial vector is

A

Zero

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B

90

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C

180

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D

45

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Solution

The correct option is A Zero
The gravitational attractive force between the planet and the sun is along the radial vector and hence the angle between the force and the radial vector is zero.
The correct option is (a)

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