If a hole were drilled through the centre of earth and ball dropped into the hole at one end, it will oscillate. The ball will comes out of other end if passed through centre hole in earth.

If a hole were drilled through the centre of earth and ball dropped in

1.	If a hole were drilled through the centre of earth and ball dropped into the hole at one end, it will oscillate. The ball will comes out of other end if passed through centre hole in earth.
Answer» Both 'A' and 'R' are TURE and 'R' is the correct EXPLANATION of 'A' Both 'A' and 'R' are true and 'R' is not the correct explanation of 'A' A' is true and 'R' is false A' is false and 'R' is true Answer :C