Torque Due to Gravity

Q. A ruler scale is balanced with two fingers, $F_{1}and{F}_2$ at a separation 20 cm and 40 cm from O respectively. If the person balancing the ruler tries to bring his fingers closer to the centre, which finger will slide first?

1. $F_1$
2. $F_2$
3. Both simultaneously
4. Insufficient data

Q. A huge rod whose length is comparable to the radius of the Earth is suspended from the sky. The centre of gravity will be at its centre of mass. This statement is?

1. true
2. false