ICSE Class 8CISCE
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The Mass of an Empty Density Bottle is 21.8 G, When Filled Completely with Water is 41.8 G and When Filled Completely with Liquid It is 40.6 G. Find : (A) the Volume of Density Bottle. (B) the Relative Density of Liquid. - ICSE Class 8 - Physics

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Question

The mass of an empty density bottle is 21.8 g, when filled completely with water is 41.8 g and when filled completely with liquid it is 40.6 g. Find :
(a) the volume of density bottle.

(b) the relative density of liquid.

Solution

Density of water is 1 g Cm3
∴ Volume of density bottle = weight of water in grams completely filling the bottle
(a) Volume of density bottle:
Mass of empty density bottle = M1 =21.8 g
Mass of bottle + water = M2  41.8 g
∴ Mass of water completely fih1ig the density bottle = M2 — M1
=41.8 —21.8
20g
But 1 g of water has volume = 1 cc
∴ Volume of bottle (density bottle) = volume of water =20 c.c. =20 ml
(b) The relative density of liquid:
Mass of 20 c.c. of liquid = (mass of density bottle + mass of 20 c.c of liquid- mass of density bottle)
= 40.6—21.8
= 18.8 g
Mass of 20 C.C of water = 20g
Relative density of liquid

R.D. =` (Mass  of   20   c.c   of  liquid)/(Mass  of  20   c.c   of  water)`=`18.8/20`

                                                            =`1.88/2`=0.94

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Solution The Mass of an Empty Density Bottle is 21.8 G, When Filled Completely with Water is 41.8 G and When Filled Completely with Liquid It is 40.6 G. Find : (A) the Volume of Density Bottle. (B) the Relative Density of Liquid. Concept: Concept of Measurement of Density of Fluids.
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