1.

The mass of a density bottle when it is filled with a liquid of density 3000 kg m^(-3)is 400 g and the mass of the bottle when it is filed with water is 200 g.The mass of the empty density bottlewhen it is filled with water is 200 g.The mass of the empty density bottle is "_____" g.

Answer»

10
100
50
500

Solution : Mass of the EMPTY bottle = `m_(1)`
Mass of the bottle with water, `m^(2)` = 200 g
Mass of he bottle with liquid, `m_(3)` =400 g
DENSITY of the liquid = `3000 " Kg "m_(-3) = 3 " g " CM^(-3)`
Density of liquid =`(m_(3)-m_(1))/(m^(2)-m_(1)`
`3=(400-m_(1))/(200-m_(1))`
`400-m_(1)=600-3m_(1)`
`2m_(1)= 200 " g ",m_(1)=100 " g "`.


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