PhysicsEasy159×since 2002Q7150The length of a seconds pendulum at a height h = 2R from earth surface will be: (Given R = Radius of earth and acceleration due to gravity at the surface of earth, g = π\piπ² ms^−-−2)A29{2 \over 9}92 mB49{4 \over 9}94 mC89{8 \over 9}98 mD19{1 \over 9}91 mCheck answerSkip