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`        if the earth  be one half of its present distance from the sun the number of the days in the year will be nearly`
2 years ago

Arun
23381 Points
```							The ratio of the time periods would be {new is say T1, actual is say T2}Note that T is directly proportional to √(R3)T1/T2 = √([R/2]3)/√(R3) = 1/(2√2)Hence T1 = T2/2√2 = 365/2√2Which is approx 129 days.RegardsArun (askIITians forum expert)
```
2 years ago
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### Course Features

• 110 Video Lectures
• Revision Notes
• Test paper with Video Solution
• Mind Map
• Study Planner
• NCERT Solutions
• Discussion Forum
• Previous Year Exam Questions