Question

A 1/2 kg of tin sheet sinks in water but if the same sheet is converted into a box or boat, it floats. Why?

Answer 1

we know

as volume increases density decreases.

when the sheet is changed to a box or boat the volume increases so the density decreases . thus it floats .

Answer 2

because of the density of the box or boat which is less than the 1/2 kg of sheet