A pendulum that beats seconds on the surface of the earth were taken to a depth of (1//3)th the radius of the earth. What will be its time period of oscillation ?

A pendulum that beats seconds on the surface of the earth were taken t

1.	A pendulum that beats seconds on the surface of the earth were taken to a depth of (1//3)th the radius of the earth. What will be its time period of oscillation ?
Answer» `SQRT(6)` SEC `sqrt(5)` sec `sqrt(2)` sec `sqrt(3)` sec Answer :A