Failed to connect to MySQL: Access denied for user 'examnext_online'@'localhost' (using password: YES) A tunnel is dug along a diameter of the earth. If `M_e&R_e` are the mass & radius of the earth respectively. Then the force on a particle of mass m placed in the tunnel at a distance r from the center is - Sarthaks eConnect
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A tunnel is dug along a diameter of the earth. If `M_e  &  R_e` are the mass & radius of the earth respectively. Then the force on a particle of mass m placed in the tunnel at a distance r from the center is:

A.

`(GM_em)/R_e^3.r`

B.

`(GM_e)/R_e^3.m/r`

C.

`(GM_em)/r . R_e^3`

D.

`(GM_em)/R_e^2 . r`