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The Mass of an Empty Density Bottle is 30 G, It is 75 G When Filled Completely with Water and 65 G When Filled Completely with a Liquid. Find Relative Density of Liquid. - ICSE Class 8 - Physics

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Question

The mass of an empty density bottle is 30 g, it is 75 g when filled completely with water and 65 g when filled completely with a liquid. Find  relative density of liquid.

 

Solution

Mass of empty density bottle (M1) =30 g
Mass of bottle + Water (M2) 75 g
Mass of liquid + Liquidx (M3)= 65 g
Mass ofwater=M2—M1=75—30=45 g

Mass of water in the density bottle =75 — 30 = 45 g
∴ Volume of water in density bottle = 45 cc
and mass of equal volume of liquid in density bottle 65—30 = 35g

R.D. of liquid = `("mass  of  45  cc  of  liquid" )/("mass  of  45  cc  of  water")`= `35/45`=`7/9`

                      =0.77

  Is there an error in this question or solution?
Solution The Mass of an Empty Density Bottle is 30 G, It is 75 G When Filled Completely with Water and 65 G When Filled Completely with a Liquid. Find Relative Density of Liquid. Concept: Concept of Measurement of Density of Fluids.
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