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#5 | Question on Newton's Law
(Physics) > Gravitation

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Related Practice Questions :

If the distance between two masses is doubled, the gravitational attraction between them:

1. Is doubled                               

2. Becomes four times

3. Is reduced to half                     

4. Is reduced to a quarter

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Which of the following is the evidence to show that there must be a force acting on earth

and directed towards the sun?

1. Deviation of the falling bodies towards east

2. Revolution of the earth around the sun

3. Phenomenon of day and night

4. The apparent motion of the sun around the earth

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The gravitational force between two stones of mass 1 kg each separated by a distance of

1 metre in vacuum is

1. Zero                                                 

2. 6.675×105newton

3. 6.675×1011newton                 

4. 6.675×108newton

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Two particles of equal mass go round a circle of radius R under the action of their mutual

gravitational attraction. The speed of each particle is

1. ν=12R1Gm                             

2. ν=Gm2R

3. ν=12GmR                               

4. ν=4GmR   

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The earth (mass = 6×1024kg ) revolves round the sun with angular velocity

2×107rad/s in a circular orbit of radius 1.5×108km . The force exerted by the sun on

the earth in Newtons, is

1. 18×1025                               

2. Zero

3. 27×1039                               

4. 36×1021

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