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Density remaining constant, if earth con...

Density remaining constant, if earth contracts to half of its present radius, duration of the day would be (in minutes)

A

`45`

B

`80`

C

`100`

D

`120`

Text Solution

Verified by Experts

The correct Answer is:
A
`I_(1)omega_(1)=I_(2)omega_(2)` and `R_(1)^(5)=R_(2)^(5)T_(2)`
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