1.

If the earth were to suddenly shrink to I//n of its present radius without any change in its mass the duration of the new day will be

Answer»

`(24)/(n)H`
`24 n h`
`(24)/(n^(2))h`
`24 n^(2) h`

SOLUTION :Here `I_(1)omega_(2)=I_(2)omega_(2)`
`(2)/(5)MR^(2)((2pi)/(24))=(2)/(5)(MR^(2))/(n^(2))((2pi)/(T))`
`T=(24)/(n^(2))`


Discussion

No Comment Found

Related InterviewSolutions