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प्रश्न
Describe an experiment to determine the density of a liquid.
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उत्तर
To determine the density of a liquid D = M / V
We need to find (i) the vol. of liquid say milk, (ii) mass of liquid.
EXPERIMENT:
(i) To find the mass of milk:
wt. of empty 100 c.c beaker = M1 g = 70 g (say)
Fill the beaker (half) with milk and weigh again=M2 g = 116 g (say)
(ii) To find the vol. of milk:
Transfer this milk into measuring cylinder and note volume V = 40 c.c (say)
∴Density of milk =D=`M/V`=`(m_2-m_1)/(40c.c)`
=`(116-70)/40`=`46/40`=`4.6/4`=1.15 g `cm^-3`
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संबंधित प्रश्न
1 kg is the mass of ............ml of water at 4°C.
Mass = density x .........
Density of water is .......Kg m-3.
Match the following :
| Column A | Column B | ||
| (a) | kg `m^-3` | (i) | relative density |
| (b) | no unit | (ii) | sinks in alcohol |
| (c) | relative density | (iii) | floats on water |
| (d) | iron | (iv) | density |
| (e) | wood | (v) | density bottle |
The correct statement is
It is easier to swim in sea water than in river water. Explain the reason.
The density of alcohol is 600 kg m-3. Express it in g Cm-3.
A piece of wood of mass 150 g has a volume of 200 Cm3. Find the density of wood in C.GS. unit and S.I. unit.
Calculate the volume of wood of mass 6000 kg if the density of wood is 0.8 g Cm-3
You are required to take out 200 ml of milk from a bucket full of milk. How will you do it?
