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A block of steel of size 5 cm xx 5cm xx ...

A block of steel of size `5 cm xx 5cm xx 5cm` is weighed in water. If the relative density of steel is 7. its apparent weight is:

A

`6 xx 5 xx 5 xx 5 gf`

B

`4 xx 4 xx 4 xx 7 gf`

C

`5 xx 5 xx 5 xx 7 xx gf`

D

`4 xx 4 xx 4 xx 6 gf`

Text Solution

Verified by Experts

The correct Answer is:
A
`W_(app) = mg - F_(B)`
`W_(app) = rhoVg - rho_(w)Vg = (rho - rho_(w)) Vg = (7rho_(w) - rho_(w))Vg = 6rho_(w) Vg`
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