Mass remaining constant, if the earth suddenly contracts to one third of its present radius, the length of the day would be shorted by
Mass remaining constant, if the earth suddenly contracts to one third of its present radius, the length of the day would be shorted by
A. 8/3h
B. 12h
C. 8h
D. 64/3 h
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Correct Answer - D
`(R_(1))/(R_(2))=sqrt((T_(1))/(T_(2))) therefore T_(2)=(24)/(9)=(8)/(3)h`
`therefore Delta T=T_(1)-T_(2)=24-(8)/(3)=(64)/(3)`.
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