Q7. A simple pendulum doing small oscillations at a place R height above earth surface has time period of $T _ { 1 } = 4 \mathrm {~s}$. $T _ { 2 }$ would be it's time period if it is brought to a point which is at a height 2 R from earth surface. Choose the correct relation [ $R =$ radius of earth] : (1) $2 \mathrm {~T} _ { 1 } = \mathrm { T } _ { 2 }$ (2) $2 \mathrm {~T} _ { 1 } = 3 \mathrm {~T} _ { 2 }$ (3) $\mathrm { T } _ { 1 } = \mathrm { T } _ { 2 }$ (4) $3 \mathrm {~T} _ { 1 } = 2 \mathrm {~T} _ { 2 }$
Q7. A simple pendulum doing small oscillations at a place R height above earth surface has time period of $T _ { 1 } = 4 \mathrm {~s}$. $T _ { 2 }$ would be it's time period if it is brought to a point which is at a height 2 R from earth surface. Choose the correct relation [ $R =$ radius of earth] :\\
(1) $2 \mathrm {~T} _ { 1 } = \mathrm { T } _ { 2 }$\\
(2) $2 \mathrm {~T} _ { 1 } = 3 \mathrm {~T} _ { 2 }$\\
(3) $\mathrm { T } _ { 1 } = \mathrm { T } _ { 2 }$\\
(4) $3 \mathrm {~T} _ { 1 } = 2 \mathrm {~T} _ { 2 }$