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प्रश्न
Describe simple experiments to prove that solids have mass
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उत्तर
Have mass – A solid has mass
A: A simple scale – is taken, as shown below
B: A solid is placed – on one side of the scale, causes the scale tilts towards one side.
Conclusion – The scale tilts due to the mass of the solid, hence all solids have mass.
संबंधित प्रश्न
Give reasons
The odour of scent spreads in a room.
Give reasons
We can walk through air.
Give reasons
Liquids have definite volume but no definite shape
The three main states of matter are solids, liquids, and gases. Compare the three states with reference to the following characteristics of matter
(a) volume
(b) shape
(c) compressibility
(d) diffusion.
Describe simple experiments to prove that gases have no definite volume or shape.
Gases have neither a definite shape nor a definite volume.
Which of the following are homogeneous in nature?
- ice
- wood
- soil
- Air
What is the physical state of water at 250°C.
A strong current of trivalent gaseous boron passed through a silicon crystal decreases the density of the crystal due to part replacement of silicon by boron and due to interstitial vacancies created by missing Si atoms. In one such experiment, one gram of silicon is taken and the boron atoms are found to be 1000 ppm by weight, when the density of the Si crystal decreases by 12%. The percentage of missing vacancies due to silicon, which are filled up by boron atoms will be ____ g. [Given · Atomic wt. Si= 30, B = 11]
The composition of a sample of wustite is Fe0.93O1.0· The iron is present in the form of Fe(III) is ______%.
