মহাকর্ষীয় প্রাবল্য ও বিভব

The gravitational potential difference between the surface of a planet and a point 20m20 m above the surface is 2Joule/Kg2 Joule/Kg. If the gravitational field is uniform then the work done in carrying a 5Kg5 Kg body to a height of 4m4 m above the surface is

since it is given that gravitational field is uniform

gradient of potential=Potential diff.Dist. between points=220=0.1 J/Kgs=\dfrac { Potential\ diff. }{ Dist.\ between\ points }=\dfrac { 2 }{ 20 } =0.1\ J/Kg s

Total work done =mass×distance×pot. gradient=5×4×0.1=2 Joule=mass\times distance\times pot.\ gradient=5\times 4\times 0.1=2\ Joule

মহাকর্ষীয় প্রাবল্য ও বিভব টপিকের ওপরে পরীক্ষা দাও