Question
Question: Two identical solid spheres of radius R placed in contact with each other, the gravitational attract...
Two identical solid spheres of radius R placed in contact with each other, the gravitational attraction between them is proportional to –
A
R2
B
R–2
C
R4
D
R–4
Answer
R4
Explanation
Solution
F =
F = 4R2Gm2 =
F =
where r is density so F µ R4