The gravitational force between two point masses m_1 and m_2 at separation r is given by F= Gm_1m_2 r^2 . The constant G [CPMT 1993]

JEE Main Physics question

The gravitational force between two point masses and at separation is given by . The constant [CPMT 1993]

(A)Depends on system of units only
(B)Depends on medium between masses only
(C)Depends on both (a) and (b)
(D)Is independent of both (a) and (b)Correct

Answer: (D)

Solution

is a universal constant of nature; its value is not affected by the medium between the masses (unlike the permittivity constant in electrostatics), and although its numerical

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Question ID VK-154554