In the following four periods
(i) Time of revolution of a satellite just above the earth's surface `(T_(st))`
(ii) Period of oscillation of mass inside the tunnel bored along the diameter of the earth `(T_(ma))`
(iii) Period of simple pendulam having a length equal to the earth's raduis in a unifrom field of `9.8 N//kg(T_(sp))`
(iv) Period of an infinite length simple pendulam in the earth's real gravitational field `(T_(is))`

Options

A. Time of revolution of a satellite just above the earth’s surface `(T_(st))`
B. Period of oscillation of mass inside the tunnel bored along the diameter of the earth `(T_(ma))`
C. Period of simple pendulum having a length equal to the earth’s radius in a uniform field of 9.8 N/kg `(T_(sp))`
D. Period of an infinite length simple pendulum in the earth’s real gravitational field `(T_(is))`

Answer

C