A solid shell loses half, its weight in ...

A solid shell loses half, its weight in water. Relative density of shell is 0.5 what fraction of its volume is hollow ?

A

`(3)/(5)`

B

`(2)/(5)`

C

`(1)/(5)`

D

`(4)/(5)`

Text Solution

Verified by Experts

The correct Answer is:

A

Loss of weight = Upthrust
`W/2" = total volume"xxrho_(w)xxg`
`or" "((V-V_(C))5xxrho_(w)xxg)/2=Vxxrho_(w)xxg" "(V_(C)"=Volume of cavity")`
`or" "V-V_(C)=2/5VrArrV_(C)=3/5V`

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