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KCET2016PhysicsGravitation

Variation of acceleration due to gravity ( (g) ) with distance ( x ) from the centre of the earth is best represented by ( ( R ) Radius of the earth)

Correct answer

3

Step-by-step solution

The acceleration due to gravity ( g ) is proportional to ( r ) till thesurface of Earth and is inversely proportional to ( r² ) outside the surface of Earth. That is, ( g r ); till surface of Earth ( g 1 r² ); outside the surface of Earth Therefore, the graph shows linear behaviour till the surface of Earth, that is, till ( r ) and beyond ( R ) it shows ( 1 r² ) decay thus the variation of ( g ) on the Earth is represented as

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