Practicing Success
Practicing Success
CUET Preparation Today
What would be the duration of an year if the distance between the earth and the sun becomes one- fourth of the present distance ? |
One- eighth times of the present year One- sixth times of the present year One-tenth times of the present year Half of the present year. |
One- eighth times of the present year |
According to Kepler's Law : \(T \propto r^{3/2}\) \(\frac{T_1}{T_2} = [\frac{r_1}{r_2}]^{3/2}\) \(T_2 = T_1 [\frac{1}{4}]^{3/2} \) \(T_2 = T_1 \frac{1}{8} \) |
