If suddenly the earth is expanded to double of its initial radius, what will be duration of the day

If suddenly the earth is expanded to double of its initial radius, wha

1.	If suddenly the earth is expanded to double of its initial radius, what will be duration of the day
Answer» The duration will increase drastically to 96 HoursExplainations:Here, D2=2D1(Because earth has expanded TWICE)∴R2=2R1(Because earth has expanded twice)T1=1day=24hr,T2=? ACCORDING to the LAW of conservation of ANGULAR MOMENTUM, I2ω2=I1ω1 25mR22(2πT2)=25mR21(2πT1) T2=T1(R2R1)2=24(2)2=96hours

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If suddenly the earth is expanded to double of its initial radius, what will be duration of the day​

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If suddenly the earth is expanded to double of its initial radius, what will be duration of the day