Gravitation Question 305
Question: If the earth is at one-fourth of its present distance from the sun, the duration of the year will be
Options:
A) half the present year
B) one-eighth the present year
C) one-sixth the present year
D) one-tenth the present year
Show Answer
Answer:
Correct Answer: B
Solution:
- $ [\frac{T_{1}^{2}}{T_{2}^{2}}=\frac{r_{1}^{3}}{r_{2}^{3}}={{\left( 4 \right)}^{3}}] $ $ [\therefore T_{2}=T_{1}/8] $
