If the distance between the earth and the sun becomes `1//4th` of its present value, then its period of revolution around the sun will become
A. 330 days
B. 129 days
C. 365 dyas
D. 45.6 days

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1 Answers

Correct Answer - d
`T_(2)=T_(1)r^(3//2)`
`=365((1)/(4))^(3//2)=365xx(1)/(8)="45.6 days"`

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