Two identical spheres are placed in contact with each other. force of gravitation between spheres wi

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7.Gravitation

normal

Two identical spheres are placed in contact with each other. The force of gravitation between the spheres will be proportional to ($R =$ radius of each sphere)

$R$

${R^2}$

${R^4}$

None of these

Solution

(c) $F = G\frac{{M \times M}}{{{R^2}}} = \frac{{G\, \times \,{{\left( {\frac{4}{3}\pi {R^3}\rho } \right)}^2}}}{{{{(2R)}^2}}} \Rightarrow F \propto \frac{{{R^6}}}{{{R^2}}} \propto {R^4}$

Standard 11

Physics

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Two identical spheres are placed in contact with each other. The force of gravitation between the spheres will be proportional to ($R =$ radius of each sphere)

Solution

Similar Questions

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