Assertion (A) A particle of mass m dropped into a hole made along the daimeter of the earth from onr end to the other and passess simple harmonic motion .
Reason (R) Gravitational force between any two particle is inversely proportianal to the sqaure o fthe distance between them .

Options

A. Both (A) and (R ) are true and (R ) is the correct explanation of (A)
B. Both (A) and (R ) are true but (R ) is not the correct explanation of (A)
C. (A) is true but (R ) is false
D. (A) is false but (R ) is true

Answer

A

Explanation

As the particle moves into and from motion it executes S.H.M and F`alpha = ((GM_1)(m_2))/r^2`